211212110010102 has 64 divisors (see below), whose sum is σ = 439561318671360. Its totient is φ = 67604502477824.

The previous prime is 211212110010079. The next prime is 211212110010107. The reversal of 211212110010102 is 201010011212112.

It is a happy number.

It is a super-2 number, since 2×211212110010102² (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 (211212110010107) 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, 849451174 + ... + 849699782.

It is an arithmetic number, because the mean of its divisors is an integer number (6868145604240).

Almost surely, 2^{211212110010102} is an apocalyptic number.

211212110010102 is an abundant number, since it is smaller than the sum of its proper divisors (228349208661258).

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

211212110010102 is a wasteful number, since it uses less digits than its factorization.

211212110010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305557.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211212110010102 its reverse (201010011212112), we get a palindrome (412222121222214).

The spelling of 211212110010102 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred ten million, ten thousand, one hundred two".