210121012312122 has 32 divisors (see below), whose sum is σ = 436449354494400. Its totient is φ = 67381654716288.

The previous prime is 210121012312111. The next prime is 210121012312153. The reversal of 210121012312122 is 221213210121012.

It is a super-2 number, since 2×210121012312122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5317345672 + ... + 5317385187.

It is an arithmetic number, because the mean of its divisors is an integer number (13639042327950).

Almost surely, 2^{210121012312122} is an apocalyptic number.

210121012312122 is an abundant number, since it is smaller than the sum of its proper divisors (226328342182278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210121012312122 is a wasteful number, since it uses less digits than its factorization.

210121012312122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634730990.

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

Adding to 210121012312122 its reverse (221213210121012), we get a palindrome (431334222433134).

The spelling of 210121012312122 in words is "two hundred ten trillion, one hundred twenty-one billion, twelve million, three hundred twelve thousand, one hundred twenty-two".