120012222120021 has 384 divisors, whose sum is σ = 235143627264000. Its totient is φ = 57106023321600.

The previous prime is 120012222120019. The next prime is 120012222120061. The reversal of 120012222120021 is 120021222210021.

It is a happy number.

120012222120021 is a `hidden beast` number, since 1 + 200 + 1 + 22 + 221 + 200 + 21 = 666.

It is not a de Polignac number, because 120012222120021 - 2¹ = 120012222120019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120012222119976 and 120012222120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012222120061) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 58004939575 + ... + 58004941643.

It is an arithmetic number, because the mean of its divisors is an integer number (612353196000).

Almost surely, 2^{120012222120021} is an apocalyptic number.

120012222120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120012222120021 is a deficient number, since it is larger than the sum of its proper divisors (115131405143979).

120012222120021 is a wasteful number, since it uses less digits than its factorization.

120012222120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3062 counting only the distinct ones).

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

Adding to 120012222120021 its reverse (120021222210021), we get a palindrome (240033444330042).

The spelling of 120012222120021 in words is "one hundred twenty trillion, twelve billion, two hundred twenty-two million, one hundred twenty thousand, twenty-one".