111121140421002 has 16 divisors (see below), whose sum is σ = 226009099162080. Its totient is φ = 36412577086992.

The previous prime is 111121140421001. The next prime is 111121140421007. The reversal of 111121140421002 is 200124041121111.

It is a self number, because there is not a number n which added to its sum of digits gives 111121140421002.

It is not an unprimeable number, because it can be changed into a prime (111121140421001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156950762953 + ... + 156950763660.

It is an arithmetic number, because the mean of its divisors is an integer number (14125568697630).

Almost surely, 2^{111121140421002} is an apocalyptic number.

111121140421002 is an abundant number, since it is smaller than the sum of its proper divisors (114887958741078).

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

111121140421002 is a wasteful number, since it uses less digits than its factorization.

111121140421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313901526677.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111121140421002 its reverse (200124041121111), we get a palindrome (311245181542113).

The spelling of 111121140421002 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred forty million, four hundred twenty-one thousand, two".