120211122310021 has 8 divisors (see below), whose sum is σ = 121959313757144. Its totient is φ = 118465673126400.

The previous prime is 120211122310003. The next prime is 120211122310039. The reversal of 120211122310021 is 120013221112021.

It is an interprime number because it is at equal distance from previous prime (120211122310003) and next prime (120211122310039).

It can be written as a sum of positive squares in 4 ways, for example, as 5443588922500 + 114767533387521 = 2333150^2 + 10712961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120211122310021 - 2²³ = 120211113921413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211122310001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685477566 + ... + 685652911.

It is an arithmetic number, because the mean of its divisors is an integer number (15244914219643).

Almost surely, 2^{120211122310021} is an apocalyptic number.

It is an amenable number.

120211122310021 is a deficient number, since it is larger than the sum of its proper divisors (1748191447123).

120211122310021 is a wasteful number, since it uses less digits than its factorization.

120211122310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371131751.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 120211122310021 its reverse (120013221112021), we get a palindrome (240224343422042).

The spelling of 120211122310021 in words is "one hundred twenty trillion, two hundred eleven billion, one hundred twenty-two million, three hundred ten thousand, twenty-one".