210101012122122 has 64 divisors (see below), whose sum is σ = 511449213813120. Its totient is φ = 63402795014400.

The previous prime is 210101012122097. The next prime is 210101012122123. The reversal of 210101012122122 is 221221210101012.

210101012122122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 210101012122095 and 210101012122104.

It is not an unprimeable number, because it can be changed into a prime (210101012122123) 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, 733685493 + ... + 733971800.

It is an arithmetic number, because the mean of its divisors is an integer number (7991393965830).

Almost surely, 2^{210101012122122} is an apocalyptic number.

210101012122122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210101012122122 is an abundant number, since it is smaller than the sum of its proper divisors (301348201690998).

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

210101012122122 is a wasteful number, since it uses less digits than its factorization.

210101012122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467657556 (or 1467657550 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210101012122122 its reverse (221221210101012), we get a palindrome (431322222223134).

The spelling of 210101012122122 in words is "two hundred ten trillion, one hundred one billion, twelve million, one hundred twenty-two thousand, one hundred twenty-two".