20121202222001 has 16 divisors (see below), whose sum is σ = 20273703331200. Its totient is φ = 19969298955648.

The previous prime is 20121202221983. The next prime is 20121202222003. The reversal of 20121202222001 is 10022220212102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20121202222001 - 2¹⁴ = 20121202205617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121202222003) 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, 595831445 + ... + 595865213.

It is an arithmetic number, because the mean of its divisors is an integer number (1267106458200).

Almost surely, 2^{20121202222001} is an apocalyptic number.

It is an amenable number.

20121202222001 is a deficient number, since it is larger than the sum of its proper divisors (152501109199).

20121202222001 is a wasteful number, since it uses less digits than its factorization.

20121202222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42488.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20121202222001 its reverse (10022220212102), we get a palindrome (30143422434103).

The spelling of 20121202222001 in words is "twenty trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-two thousand, one".