20101202112001 has 4 divisors (see below), whose sum is σ = 20114756531632. Its totient is φ = 20087647692372.

The previous prime is 20101202111971. The next prime is 20101202112109. The reversal of 20101202112001 is 10021120210102.

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 20101202112001 - 2²³ = 20101193723393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101202113001) 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, 6777207591 + ... + 6777210556.

It is an arithmetic number, because the mean of its divisors is an integer number (5028689132908).

Almost surely, 2^{20101202112001} is an apocalyptic number.

It is an amenable number.

20101202112001 is a deficient number, since it is larger than the sum of its proper divisors (13554419631).

20101202112001 is a wasteful number, since it uses less digits than its factorization.

20101202112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13554419630.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20101202112001 its reverse (10021120210102), we get a palindrome (30122322322103).

The spelling of 20101202112001 in words is "twenty trillion, one hundred one billion, two hundred two million, one hundred twelve thousand, one".