22012011211001 has 4 divisors (see below), whose sum is σ = 25156584241152. Its totient is φ = 18867438180852.

The previous prime is 22012011210997. The next prime is 22012011211033. The reversal of 22012011211001 is 10011211021022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22012011211001 - 2² = 22012011210997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012011211051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572286515065 + ... + 1572286515078.

It is an arithmetic number, because the mean of its divisors is an integer number (6289146060288).

Almost surely, 2^{22012011211001} is an apocalyptic number.

It is an amenable number.

22012011211001 is a deficient number, since it is larger than the sum of its proper divisors (3144573030151).

22012011211001 is an equidigital number, since it uses as much as digits as its factorization.

22012011211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144573030150.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22012011211001 its reverse (10011211021022), we get a palindrome (32023222232023).

The spelling of 22012011211001 in words is "twenty-two trillion, twelve billion, eleven million, two hundred eleven thousand, one".