122040020 has 24 divisors (see below), whose sum is σ = 262245984. Its totient is φ = 47680416.

The previous prime is 122040019. The next prime is 122040029. The reversal of 122040020 is 20040221.

It is a junction number, because it is equal to n+sod(n) for n = 122039983 and 122040010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122040029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70094 + ... + 71813.

It is an arithmetic number, because the mean of its divisors is an integer number (10926916).

Almost surely, 2^122040020 is an apocalyptic number.

122040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122040020 is an abundant number, since it is smaller than the sum of its proper divisors (140205964).

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

122040020 is a wasteful number, since it uses less digits than its factorization.

122040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141959 (or 141957 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 122040020 is about 11047.1724889222. The cubic root of 122040020 is about 496.0217916631.

Adding to 122040020 its reverse (20040221), we get a palindrome (142080241).

The spelling of 122040020 in words is "one hundred twenty-two million, forty thousand, twenty".