210121231311122 has 64 divisors (see below), whose sum is σ = 339859183104000. Its totient is φ = 97078286004480.

The previous prime is 210121231311109. The next prime is 210121231311137. The reversal of 210121231311122 is 221113132121012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455209079 + ... + 455670437.

It is an arithmetic number, because the mean of its divisors is an integer number (5310299736000).

Almost surely, 2^{210121231311122} is an apocalyptic number.

210121231311122 is a deficient number, since it is larger than the sum of its proper divisors (129737951792878).

210121231311122 is a wasteful number, since it uses less digits than its factorization.

210121231311122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462471.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 210121231311122 its reverse (221113132121012), we get a palindrome (431234363432134).

The spelling of 210121231311122 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred thirty-one million, three hundred eleven thousand, one hundred twenty-two".