11121202331998 has 16 divisors (see below), whose sum is σ = 18208712401776. Its totient is φ = 5052208271040.

The previous prime is 11121202331989. The next prime is 11121202332017. The reversal of 11121202331998 is 89913320212111.

It is a super-2 number, since 2×11121202331998² (a number of 27 digits) contains 22 as substring.

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, 144145461 + ... + 144222592.

It is an arithmetic number, because the mean of its divisors is an integer number (1138044525111).

Almost surely, 2^{11121202331998} is an apocalyptic number.

11121202331998 is a deficient number, since it is larger than the sum of its proper divisors (7087510069778).

11121202331998 is a wasteful number, since it uses less digits than its factorization.

11121202331998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288369819.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 11121202331998 in words is "eleven trillion, one hundred twenty-one billion, two hundred two million, three hundred thirty-one thousand, nine hundred ninety-eight".