121002231202020 has 72 divisors (see below), whose sum is σ = 419474401504704. Its totient is φ = 27657652845888.

The previous prime is 121002231202019. The next prime is 121002231202033. The reversal of 121002231202020 is 20202132200121.

121002231202020 is a `hidden beast` number, since 1 + 210 + 0 + 2 + 231 + 20 + 202 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121002231201984 and 121002231202002.

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, 48016757154 + ... + 48016759673.

It is an arithmetic number, because the mean of its divisors is an integer number (5826033354232).

Almost surely, 2^{121002231202020} is an apocalyptic number.

121002231202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002231202020 is an abundant number, since it is smaller than the sum of its proper divisors (298472170302684).

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

121002231202020 is a wasteful number, since it uses less digits than its factorization.

121002231202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96033516849 (or 96033516844 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121002231202020 its reverse (20202132200121), we get a palindrome (141204363402141).

The spelling of 121002231202020 in words is "one hundred twenty-one trillion, two billion, two hundred thirty-one million, two hundred two thousand, twenty".