121221112220092 has 24 divisors (see below), whose sum is σ = 223642356761376. Its totient is φ = 57377630880768.

The previous prime is 121221112220063. The next prime is 121221112220113. The reversal of 121221112220092 is 290022211122121.

It is a super-2 number, since 2×121221112220092² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121221112220092.

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, 6791850793 + ... + 6791868640.

It is an arithmetic number, because the mean of its divisors is an integer number (9318431531724).

Almost surely, 2^{121221112220092} is an apocalyptic number.

It is an amenable number.

121221112220092 is a deficient number, since it is larger than the sum of its proper divisors (102421244541284).

121221112220092 is a wasteful number, since it uses less digits than its factorization.

121221112220092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583719557 (or 13583719555 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 121221112220092 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, ninety-two".