202001222001 has 4 divisors (see below), whose sum is σ = 269334962672. Its totient is φ = 134667481332.

The previous prime is 202001221979. The next prime is 202001222009. The reversal of 202001222001 is 100222100202.

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 not a de Polignac number, because 202001222001 - 2⁵ = 202001221969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001222009) 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, 33666870331 + ... + 33666870336.

It is an arithmetic number, because the mean of its divisors is an integer number (67333740668).

Almost surely, 2^202001222001 is an apocalyptic number.

It is an amenable number.

202001222001 is a deficient number, since it is larger than the sum of its proper divisors (67333740671).

202001222001 is an equidigital number, since it uses as much as digits as its factorization.

202001222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67333740670.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202001222001 its reverse (100222100202), we get a palindrome (302223322203).

The spelling of 202001222001 in words is "two hundred two billion, one million, two hundred twenty-two thousand, one".