211112112303212 has 24 divisors (see below), whose sum is σ = 390388936358400. Its totient is φ = 99688603384656.

The previous prime is 211112112303073. The next prime is 211112112303241. The reversal of 211112112303212 is 212303211211112.

It is a super-2 number, since 2×211112112303212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 14523390662 + ... + 14523405197.

It is an arithmetic number, because the mean of its divisors is an integer number (16266205681600).

Almost surely, 2^{211112112303212} is an apocalyptic number.

It is an amenable number.

211112112303212 is a deficient number, since it is larger than the sum of its proper divisors (179276824055188).

211112112303212 is a wasteful number, since it uses less digits than its factorization.

211112112303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29046795965 (or 29046795963 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 211112112303212 its reverse (212303211211112), we get a palindrome (423415323514324).

The spelling of 211112112303212 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred twelve million, three hundred three thousand, two hundred twelve".