121011218500722 has 48 divisors (see below), whose sum is σ = 280025960198880. Its totient is φ = 34740062723520.

The previous prime is 121011218500709. The next prime is 121011218500747. The reversal of 121011218500722 is 227005812110121.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4386357763 + ... + 4386385350.

It is an arithmetic number, because the mean of its divisors is an integer number (5833874170810).

Almost surely, 2^{121011218500722} is an apocalyptic number.

121011218500722 is an abundant number, since it is smaller than the sum of its proper divisors (159014741698158).

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

121011218500722 is a wasteful number, since it uses less digits than its factorization.

121011218500722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8772743159 (or 8772743148 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 33.

The spelling of 121011218500722 in words is "one hundred twenty-one trillion, eleven billion, two hundred eighteen million, five hundred thousand, seven hundred twenty-two".