211211010012102 has 16 divisors (see below), whose sum is σ = 422422353415920. Its totient is φ = 70403614438752.

The previous prime is 211211010012077. The next prime is 211211010012137. The reversal of 211211010012102 is 201210010112112.

It is a happy number.

It is a super-2 number, since 2×211211010012102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 5241193 + ... + 21210660.

It is an arithmetic number, because the mean of its divisors is an integer number (26401397088495).

Almost surely, 2^{211211010012102} is an apocalyptic number.

211211010012102 is an abundant number, since it is smaller than the sum of its proper divisors (211211343403818).

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

211211010012102 is a wasteful number, since it uses less digits than its factorization.

211211010012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27782647.

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

Adding to 211211010012102 its reverse (201210010112112), we get a palindrome (412421020124214).

The spelling of 211211010012102 in words is "two hundred eleven trillion, two hundred eleven billion, ten million, twelve thousand, one hundred two".