120211210101021 has 12 divisors (see below), whose sum is σ = 173559380264928. Its totient is φ = 73976129292624.

The previous prime is 120211210101007. The next prime is 120211210101077. The reversal of 120211210101021 is 120101012112021.

It is a happy number.

It is not a de Polignac number, because 120211210101021 - 2⁶ = 120211210100957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211210101121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118551488745 + ... + 118551489758.

It is an arithmetic number, because the mean of its divisors is an integer number (14463281688744).

Almost surely, 2^{120211210101021} is an apocalyptic number.

It is an amenable number.

120211210101021 is a deficient number, since it is larger than the sum of its proper divisors (53348170163907).

120211210101021 is a wasteful number, since it uses less digits than its factorization.

120211210101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237102978532 (or 237102978519 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120211210101021 its reverse (120101012112021), we get a palindrome (240312222213042).

The spelling of 120211210101021 in words is "one hundred twenty trillion, two hundred eleven billion, two hundred ten million, one hundred one thousand, twenty-one".