22201111201021 has 4 divisors (see below), whose sum is σ = 22201187126112. Its totient is φ = 22201035275932.

The previous prime is 22201111200991. The next prime is 22201111201069. The reversal of 22201111201021 is 12010211110222.

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 22201111201021 - 2³¹ = 22198963717373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201111200986 and 22201111201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201111201721) 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, 37522231 + ... + 38109316.

It is an arithmetic number, because the mean of its divisors is an integer number (5550296781528).

Almost surely, 2^{22201111201021} is an apocalyptic number.

It is an amenable number.

22201111201021 is a deficient number, since it is larger than the sum of its proper divisors (75925091).

22201111201021 is an equidigital number, since it uses as much as digits as its factorization.

22201111201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75925090.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22201111201021 its reverse (12010211110222), we get a palindrome (34211322311243).

The spelling of 22201111201021 in words is "twenty-two trillion, two hundred one billion, one hundred eleven million, two hundred one thousand, twenty-one".