202202221221001 has 4 divisors (see below), whose sum is σ = 204091961606352. Its totient is φ = 200312480835652.

The previous prime is 202202221220969. The next prime is 202202221221017. The reversal of 202202221221001 is 100122122202202.

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 202202221221001 - 2⁵ = 202202221220969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202202221221001.

It is not an unprimeable number, because it can be changed into a prime (202202221221071) 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, 944870192515 + ... + 944870192728.

It is an arithmetic number, because the mean of its divisors is an integer number (51022990401588).

Almost surely, 2^{202202221221001} is an apocalyptic number.

It is an amenable number.

202202221221001 is a deficient number, since it is larger than the sum of its proper divisors (1889740385351).

202202221221001 is a wasteful number, since it uses less digits than its factorization.

202202221221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889740385350.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202202221221001 its reverse (100122122202202), we get a palindrome (302324343423203).

The spelling of 202202221221001 in words is "two hundred two trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, one".