111212210000212 has 24 divisors (see below), whose sum is σ = 197927267771520. Its totient is φ = 54661630951680.

The previous prime is 111212210000173. The next prime is 111212210000237. The reversal of 111212210000212 is 212000012212111.

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, 2128989 + ... + 15065092.

It is an arithmetic number, because the mean of its divisors is an integer number (8246969490480).

Almost surely, 2^{111212210000212} is an apocalyptic number.

It is an amenable number.

111212210000212 is a deficient number, since it is larger than the sum of its proper divisors (86715057771308).

111212210000212 is a wasteful number, since it uses less digits than its factorization.

111212210000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17221551 (or 17221549 counting only the distinct ones).

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

Adding to 111212210000212 its reverse (212000012212111), we get a palindrome (323212222212323).

The spelling of 111212210000212 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred ten million, two hundred twelve", and thus it is an aban number.