210320112122121 has 32 divisors (see below), whose sum is σ = 280933572261888. Its totient is φ = 139960322573760.

The previous prime is 210320112122119. The next prime is 210320112122167. The reversal of 210320112122121 is 121221211023012.

It is not a de Polignac number, because 210320112122121 - 2¹ = 210320112122119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210320112122171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22893226290 + ... + 22893235476.

It is an arithmetic number, because the mean of its divisors is an integer number (8779174133184).

Almost surely, 2^{210320112122121} is an apocalyptic number.

It is an amenable number.

210320112122121 is a deficient number, since it is larger than the sum of its proper divisors (70613460139767).

210320112122121 is a wasteful number, since it uses less digits than its factorization.

210320112122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15741.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 210320112122121 its reverse (121221211023012), we get a palindrome (331541323145133).

The spelling of 210320112122121 in words is "two hundred ten trillion, three hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twenty-one".