22111012021002 has 64 divisors (see below), whose sum is σ = 45506432337408. Its totient is φ = 7157947968000.

The previous prime is 22111012020989. The next prime is 22111012021009. The reversal of 22111012021002 is 20012021011122.

It is not an unprimeable number, because it can be changed into a prime (22111012021009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78592128 + ... + 78872964.

It is an arithmetic number, because the mean of its divisors is an integer number (711038005272).

Almost surely, 2^{22111012021002} is an apocalyptic number.

22111012021002 is an abundant number, since it is smaller than the sum of its proper divisors (23395420316406).

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

22111012021002 is a wasteful number, since it uses less digits than its factorization.

22111012021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282335.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111012021002 its reverse (20012021011122), we get a palindrome (42123033032124).

It can be divided in two parts, 221110120 and 21002, that added together give a palindrome (221131122).

The spelling of 22111012021002 in words is "twenty-two trillion, one hundred eleven billion, twelve million, twenty-one thousand, two".