211212100202102 has 16 divisors (see below), whose sum is σ = 329186715510960. Its totient is φ = 101515279507488.

The previous prime is 211212100202041. The next prime is 211212100202107. The reversal of 211212100202102 is 201202001212112.

It is a super-2 number, since 2×211212100202102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212100202107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8021105633 + ... + 8021131964.

It is an arithmetic number, because the mean of its divisors is an integer number (20574169719435).

Almost surely, 2^{211212100202102} is an apocalyptic number.

211212100202102 is a deficient number, since it is larger than the sum of its proper divisors (117974615308858).

211212100202102 is a wasteful number, since it uses less digits than its factorization.

211212100202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16042237855.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212100202102 its reverse (201202001212112), we get a palindrome (412414101414214).

The spelling of 211212100202102 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred million, two hundred two thousand, one hundred two".