121220044 has 48 divisors (see below), whose sum is σ = 240694272. Its totient is φ = 52920000.

The previous prime is 121220041. The next prime is 121220069. The reversal of 121220044 is 440022121.

It is not an unprimeable number, because it can be changed into a prime (121220041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246639 + ... + 247129.

It is an arithmetic number, because the mean of its divisors is an integer number (5014464).

Almost surely, 2^121220044 is an apocalyptic number.

It is an amenable number.

121220044 is a deficient number, since it is larger than the sum of its proper divisors (119474228).

121220044 is a wasteful number, since it uses less digits than its factorization.

121220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 121220044 is about 11009.9974568571. The cubic root of 121220044 is about 494.9083855890.

Adding to 121220044 its reverse (440022121), we get a palindrome (561242165).

The spelling of 121220044 in words is "one hundred twenty-one million, two hundred twenty thousand, forty-four".