210100010122 has 8 divisors (see below), whose sum is σ = 315566331876. Its totient is φ = 104911232832.

The previous prime is 210100010053. The next prime is 210100010147. The reversal of 210100010122 is 221010001012.

It can be written as a sum of positive squares in 2 ways, for example, as 205108446321 + 4991563801 = 452889^2 + 70651^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 210100010099 and 210100010108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69384223 + ... + 69387250.

Almost surely, 2^210100010122 is an apocalyptic number.

210100010122 is a deficient number, since it is larger than the sum of its proper divisors (105466321754).

210100010122 is a wasteful number, since it uses less digits than its factorization.

210100010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138772232.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210100010122 its reverse (221010001012), we get a palindrome (431110011134).

It can be divided in two parts, 21010001012 and 2, that multiplied together give a palindrome (42020002024).

The spelling of 210100010122 in words is "two hundred ten billion, one hundred million, ten thousand, one hundred twenty-two".