221121131113002 has 16 divisors (see below), whose sum is σ = 442247667016320. Its totient is φ = 73706142905952.

The previous prime is 221121131112991. The next prime is 221121131113037. The reversal of 221121131113002 is 200311131121122.

221121131113002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221121131113002² (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 221121131113002.

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, 224667643 + ... + 225649710.

It is an arithmetic number, because the mean of its divisors is an integer number (27640479188520).

Almost surely, 2^{221121131113002} is an apocalyptic number.

221121131113002 is an abundant number, since it is smaller than the sum of its proper divisors (221126535903318).

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

221121131113002 is a wasteful number, since it uses less digits than its factorization.

221121131113002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450399197.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 221121131113002 its reverse (200311131121122), we get a palindrome (421432262234124).

The spelling of 221121131113002 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred thirty-one million, one hundred thirteen thousand, two".