202211002001 has 4 divisors (see below), whose sum is σ = 202400162100. Its totient is φ = 202021841904.

The previous prime is 202211001997. The next prime is 202211002003. The reversal of 202211002001 is 100200112202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105537268225 + 96673733776 = 324865^2 + 310924^2 .

It is a cyclic number.

It is not a de Polignac number, because 202211002001 - 2² = 202211001997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202211002003) 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, 94578446 + ... + 94580583.

It is an arithmetic number, because the mean of its divisors is an integer number (50600040525).

Almost surely, 2^202211002001 is an apocalyptic number.

It is an amenable number.

202211002001 is a deficient number, since it is larger than the sum of its proper divisors (189160099).

202211002001 is a wasteful number, since it uses less digits than its factorization.

202211002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189160098.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202211002001 its reverse (100200112202), we get a palindrome (302411114203).

The spelling of 202211002001 in words is "two hundred two billion, two hundred eleven million, two thousand, one".