100211220122 has 16 divisors (see below), whose sum is σ = 161897044680. Its totient is φ = 46246366272.

The previous prime is 100211220119. The next prime is 100211220143. The reversal of 100211220122 is 221022112001.

It can be written as a sum of positive squares in 4 ways, for example, as 48013136161 + 52198083961 = 219119^2 + 228469^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100211220097 and 100211220106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45704 + ... + 450012.

Almost surely, 2^100211220122 is an apocalyptic number.

100211220122 is a deficient number, since it is larger than the sum of its proper divisors (61685824558).

100211220122 is a wasteful number, since it uses less digits than its factorization.

100211220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413857.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100211220122 its reverse (221022112001), we get a palindrome (321233332123).

The spelling of 100211220122 in words is "one hundred billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".