121120110111212 has 24 divisors (see below), whose sum is σ = 212096978118480. Its totient is φ = 60520978033920.

The previous prime is 121120110111097. The next prime is 121120110111281. The reversal of 121120110111212 is 212111011021121.

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, 108120464 + ... + 109234952.

It is an arithmetic number, because the mean of its divisors is an integer number (8837374088270).

Almost surely, 2^{121120110111212} is an apocalyptic number.

It is an amenable number.

121120110111212 is a deficient number, since it is larger than the sum of its proper divisors (90976868007268).

121120110111212 is a wasteful number, since it uses less digits than its factorization.

121120110111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132001 (or 1131999 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121120110111212 its reverse (212111011021121), we get a palindrome (333231121132333).

Subtracting 121120110111212 from its reverse (212111011021121), we obtain a palindrome (90990900909909).

The spelling of 121120110111212 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred ten million, one hundred eleven thousand, two hundred twelve".