120211212021021 has 48 divisors (see below), whose sum is σ = 189870801943680. Its totient is φ = 72683355807360.

The previous prime is 120211212020947. The next prime is 120211212021049. The reversal of 120211212021021 is 120120212112021.

120211212021021 is a `hidden beast` number, since 1 + 202 + 112 + 120 + 210 + 21 = 666.

It is not a de Polignac number, because 120211212021021 - 2¹¹ = 120211212018973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120211212020985 and 120211212021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211212021521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 561278671 + ... + 561492803.

It is an arithmetic number, because the mean of its divisors is an integer number (3955641707160).

Almost surely, 2^{120211212021021} is an apocalyptic number.

120211212021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120211212021021 is a deficient number, since it is larger than the sum of its proper divisors (69659589922659).

120211212021021 is a wasteful number, since it uses less digits than its factorization.

120211212021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227506 (or 227503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120211212021021 its reverse (120120212112021), we get a palindrome (240331424133042).

The spelling of 120211212021021 in words is "one hundred twenty trillion, two hundred eleven billion, two hundred twelve million, twenty-one thousand, twenty-one".