211211221102012 has 6 divisors (see below), whose sum is σ = 369619636928528. Its totient is φ = 105605610551004.

The previous prime is 211211221101971. The next prime is 211211221102087. The reversal of 211211221102012 is 210201122112112.

It is a happy number.

It is a super-2 number, since 2×211211221102012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26401402637748 + ... + 26401402637755.

Almost surely, 2^{211211221102012} is an apocalyptic number.

It is an amenable number.

211211221102012 is a deficient number, since it is larger than the sum of its proper divisors (158408415826516).

211211221102012 is a wasteful number, since it uses less digits than its factorization.

211211221102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52802805275507 (or 52802805275505 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211211221102012 its reverse (210201122112112), we get a palindrome (421412343214124).

The spelling of 211211221102012 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-one million, one hundred two thousand, twelve".