120012212221020 has 72 divisors (see below), whose sum is σ = 416042335703904. Its totient is φ = 27431362793088.

The previous prime is 120012212220961. The next prime is 120012212221073. The reversal of 120012212221020 is 20122212210021.

It is a happy number.

120012212221020 is a `hidden beast` number, since 1 + 200 + 1 + 221 + 2 + 221 + 0 + 20 = 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 = 120012212220984 and 120012212221002.

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, 47623892479 + ... + 47623894998.

Almost surely, 2^{120012212221020} is an apocalyptic number.

120012212221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120012212221020 is an abundant number, since it is smaller than the sum of its proper divisors (296030123482884).

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

120012212221020 is a wasteful number, since it uses less digits than its factorization.

120012212221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95247787499 (or 95247787494 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120012212221020 its reverse (20122212210021), we get a palindrome (140134424431041).

It can be divided in two parts, 12001221 and 2221020, that added together give a palindrome (14222241).

The spelling of 120012212221020 in words is "one hundred twenty trillion, twelve billion, two hundred twelve million, two hundred twenty-one thousand, twenty".