22012211001 has 32 divisors (see below), whose sum is σ = 32693758848. Its totient is φ = 13061744640.

The previous prime is 22012210981. The next prime is 22012211003. The reversal of 22012211001 is 10011221022.

It is not a de Polignac number, because 22012211001 - 2¹³ = 22012202809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012211003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296685 + ... + 363381.

It is an arithmetic number, because the mean of its divisors is an integer number (1021679964).

Almost surely, 2^22012211001 is an apocalyptic number.

It is an amenable number.

22012211001 is a deficient number, since it is larger than the sum of its proper divisors (10681547847).

22012211001 is a wasteful number, since it uses less digits than its factorization.

22012211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66921.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22012211001 its reverse (10011221022), we get a palindrome (32023432023).

It can be divided in two parts, 220 and 12211001, that added together give a palindrome (12211221).

The spelling of 22012211001 in words is "twenty-two billion, twelve million, two hundred eleven thousand, one".