122121220220120 has 96 divisors (see below), whose sum is σ = 313351425087120. Its totient is φ = 42476946082560.

The previous prime is 122121220220093. The next prime is 122121220220171. The reversal of 122121220220120 is 21022022121221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122121220220092 and 122121220220101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262100159 + ... + 262565678.

Almost surely, 2^{122121220220120} is an apocalyptic number.

122121220220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121220220120 is an abundant number, since it is smaller than the sum of its proper divisors (191230204867000).

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

122121220220120 is a wasteful number, since it uses less digits than its factorization.

122121220220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524665905 (or 524665878 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122121220220120 its reverse (21022022121221), we get a palindrome (143143242341341).

The spelling of 122121220220120 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twenty thousand, one hundred twenty".