22011100202001 has 4 divisors (see below), whose sum is σ = 29348133602672. Its totient is φ = 14674066801332.

The previous prime is 22011100201949. The next prime is 22011100202081. The reversal of 22011100202001 is 10020200111022.

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 22011100202001 - 2¹⁰ = 22011100200977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011100202081) 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, 3668516700331 + ... + 3668516700336.

It is an arithmetic number, because the mean of its divisors is an integer number (7337033400668).

Almost surely, 2^{22011100202001} is an apocalyptic number.

It is an amenable number.

22011100202001 is a deficient number, since it is larger than the sum of its proper divisors (7337033400671).

22011100202001 is an equidigital number, since it uses as much as digits as its factorization.

22011100202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337033400670.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22011100202001 its reverse (10020200111022), we get a palindrome (32031300313023).

The spelling of 22011100202001 in words is "twenty-two trillion, eleven billion, one hundred million, two hundred two thousand, one".