21120222011002 has 64 divisors (see below), whose sum is σ = 34903058319360. Its totient is φ = 9548494012800.

The previous prime is 21120222010969. The next prime is 21120222011011. The reversal of 21120222011002 is 20011022202112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171799977 + ... + 171922867.

It is an arithmetic number, because the mean of its divisors is an integer number (545360286240).

Almost surely, 2^{21120222011002} is an apocalyptic number.

21120222011002 is a deficient number, since it is larger than the sum of its proper divisors (13782836308358).

21120222011002 is a wasteful number, since it uses less digits than its factorization.

21120222011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125347.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21120222011002 its reverse (20011022202112), we get a palindrome (41131244213114).

The spelling of 21120222011002 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, eleven thousand, two".