120197772 has 36 divisors (see below), whose sum is σ = 306063576. Its totient is φ = 39771840.

The previous prime is 120197767. The next prime is 120197783. The reversal of 120197772 is 277791021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7254 + ... + 17117.

It is an arithmetic number, because the mean of its divisors is an integer number (8501766).

Almost surely, 2^120197772 is an apocalyptic number.

120197772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120197772 is an abundant number, since it is smaller than the sum of its proper divisors (185865804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120197772 is a wasteful number, since it uses less digits than its factorization.

120197772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24518 (or 24513 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 120197772 is about 10963.4744492793. The cubic root of 120197772 is about 493.5132370812.

It can be divided in two parts, 12019 and 7772, that added together give a palindrome (19791).

The spelling of 120197772 in words is "one hundred twenty million, one hundred ninety-seven thousand, seven hundred seventy-two".