121020112002020 has 96 divisors (see below), whose sum is σ = 316864896074496. Its totient is φ = 37719097344000.

The previous prime is 121020112002019. The next prime is 121020112002029. The reversal of 121020112002020 is 20200211020121.

It is a super-3 number, since 3×121020112002020³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 121020112001986 and 121020112002004.

It is not an unprimeable number, because it can be changed into a prime (121020112002029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38709320 + ... + 41718720.

It is an arithmetic number, because the mean of its divisors is an integer number (3300676000776).

Almost surely, 2^{121020112002020} is an apocalyptic number.

121020112002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020112002020 is an abundant number, since it is smaller than the sum of its proper divisors (195844784072476).

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

121020112002020 is a wasteful number, since it uses less digits than its factorization.

121020112002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035541 (or 3035539 counting only the distinct ones).

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

Adding to 121020112002020 its reverse (20200211020121), we get a palindrome (141220323022141).

The spelling of 121020112002020 in words is "one hundred twenty-one trillion, twenty billion, one hundred twelve million, two thousand, twenty".