202001100111001 has 4 divisors (see below), whose sum is σ = 202029348069504. Its totient is φ = 201972852152500.

The previous prime is 202001100110987. The next prime is 202001100111053. The reversal of 202001100111001 is 100111001100202.

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 202001100111001 - 2¹⁵ = 202001100078233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001100111401) 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, 14123968525 + ... + 14123982826.

It is an arithmetic number, because the mean of its divisors is an integer number (50507337017376).

Almost surely, 2^{202001100111001} is an apocalyptic number.

It is an amenable number.

202001100111001 is a deficient number, since it is larger than the sum of its proper divisors (28247958503).

202001100111001 is an equidigital number, since it uses as much as digits as its factorization.

202001100111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28247958502.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 202001100111001 its reverse (100111001100202), we get a palindrome (302112101211203).

The spelling of 202001100111001 in words is "two hundred two trillion, one billion, one hundred million, one hundred eleven thousand, one".