210111222112 has 48 divisors (see below), whose sum is σ = 451460135952. Its totient is φ = 95463083520.

The previous prime is 210111222107. The next prime is 210111222133. The reversal of 210111222112 is 211222111012.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 676978 + ... + 937294.

It is an arithmetic number, because the mean of its divisors is an integer number (9405419499).

Almost surely, 2^210111222112 is an apocalyptic number.

210111222112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210111222112 is an abundant number, since it is smaller than the sum of its proper divisors (241348913840).

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

210111222112 is a wasteful number, since it uses less digits than its factorization.

210111222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262631 (or 262623 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210111222112 its reverse (211222111012), we get a palindrome (421333333124).

Subtracting 210111222112 from its reverse (211222111012), we obtain a square (1110888900 = 33330²).

The spelling of 210111222112 in words is "two hundred ten billion, one hundred eleven million, two hundred twenty-two thousand, one hundred twelve".