22002201122021 has 4 divisors (see below), whose sum is σ = 22711949545344. Its totient is φ = 21292452698700.

The previous prime is 22002201121961. The next prime is 22002201122039. The reversal of 22002201122021 is 12022110220022.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-22002201122021 is a prime.

It is a super-2 number, since 2×22002201122021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002201122071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354874211615 + ... + 354874211676.

It is an arithmetic number, because the mean of its divisors is an integer number (5677987386336).

Almost surely, 2^{22002201122021} is an apocalyptic number.

It is an amenable number.

22002201122021 is a deficient number, since it is larger than the sum of its proper divisors (709748423323).

22002201122021 is an equidigital number, since it uses as much as digits as its factorization.

22002201122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709748423322.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22002201122021 its reverse (12022110220022), we get a palindrome (34024311342043).

The spelling of 22002201122021 in words is "twenty-two trillion, two billion, two hundred one million, one hundred twenty-two thousand, twenty-one".