20212112002001 has 16 divisors (see below), whose sum is σ = 20511358617600. Its totient is φ = 19913275502400.

The previous prime is 20212112001959. The next prime is 20212112002141. The reversal of 20212112002001 is 10020021121202.

It is a cyclic number.

It is not a de Polignac number, because 20212112002001 - 2¹⁸ = 20212111739857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212112008001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615624656 + ... + 615657486.

It is an arithmetic number, because the mean of its divisors is an integer number (1281959913600).

Almost surely, 2^{20212112002001} is an apocalyptic number.

It is an amenable number.

20212112002001 is a deficient number, since it is larger than the sum of its proper divisors (299246615599).

20212112002001 is a wasteful number, since it uses less digits than its factorization.

20212112002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38800.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20212112002001 its reverse (10020021121202), we get a palindrome (30232133123203).

The spelling of 20212112002001 in words is "twenty trillion, two hundred twelve billion, one hundred twelve million, two thousand, one".