11472210021 has 16 divisors (see below), whose sum is σ = 16334184960. Its totient is φ = 7146202560.

The previous prime is 11472209999. The next prime is 11472210053. The reversal of 11472210021 is 12001227411.

It is not a de Polignac number, because 11472210021 - 2¹⁴ = 11472193637 is a prime.

It is a super-2 number, since 2×11472210021² (a number of 21 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 11472210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11472217021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124150 + ... + 2129543.

It is an arithmetic number, because the mean of its divisors is an integer number (1020886560).

Almost surely, 2^11472210021 is an apocalyptic number.

It is an amenable number.

11472210021 is a deficient number, since it is larger than the sum of its proper divisors (4861974939).

11472210021 is a wasteful number, since it uses less digits than its factorization.

11472210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253756.

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 11472210021 its reverse (12001227411), we get a palindrome (23473437432).

The spelling of 11472210021 in words is "eleven billion, four hundred seventy-two million, two hundred ten thousand, twenty-one".