101211211100212 has 12 divisors (see below), whose sum is σ = 178873279024356. Its totient is φ = 50104559950400.

The previous prime is 101211211100177. The next prime is 101211211100213. The reversal of 101211211100212 is 212001112112101.

It can be written as a sum of positive squares in 2 ways, for example, as 66946531311396 + 34264679788816 = 8182086^2 + 5853604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211211100213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125261399473 + ... + 125261400280.

It is an arithmetic number, because the mean of its divisors is an integer number (14906106585363).

Almost surely, 2^{101211211100212} is an apocalyptic number.

It is an amenable number.

101211211100212 is a deficient number, since it is larger than the sum of its proper divisors (77662067924144).

101211211100212 is a wasteful number, since it uses less digits than its factorization.

101211211100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250522799858 (or 250522799856 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 101211211100212 its reverse (212001112112101), we get a palindrome (313212323212313).

The spelling of 101211211100212 in words is "one hundred one trillion, two hundred eleven billion, two hundred eleven million, one hundred thousand, two hundred twelve".