120212121020 has 96 divisors (see below), whose sum is σ = 257360374656. Its totient is φ = 47159936000.

The previous prime is 120212121019. The next prime is 120212121059. The reversal of 120212121020 is 20121212021.

It is a junction number, because it is equal to n+sod(n) for n = 120212120986 and 120212121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155513354 + ... + 155514126.

It is an arithmetic number, because the mean of its divisors is an integer number (2680837236).

Almost surely, 2^120212121020 is an apocalyptic number.

120212121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120212121020 is an abundant number, since it is smaller than the sum of its proper divisors (137148253636).

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

120212121020 is a wasteful number, since it uses less digits than its factorization.

120212121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120212121020 its reverse (20121212021), we get a palindrome (140333333041).

The spelling of 120212121020 in words is "one hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, twenty".