20002121112201 has 16 divisors (see below), whose sum is σ = 26879060452608. Its totient is φ = 13230306460800.

The previous prime is 20002121112173. The next prime is 20002121112343. The reversal of 20002121112201 is 10221112120002.

It is not a de Polignac number, because 20002121112201 - 2²² = 20002116917897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002121112601) 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, 42499516 + ... + 42967581.

It is an arithmetic number, because the mean of its divisors is an integer number (1679941278288).

Almost surely, 2^{20002121112201} is an apocalyptic number.

It is an amenable number.

20002121112201 is a deficient number, since it is larger than the sum of its proper divisors (6876939340407).

20002121112201 is a wasteful number, since it uses less digits than its factorization.

20002121112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85467712.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20002121112201 its reverse (10221112120002), we get a palindrome (30223233232203).

The spelling of 20002121112201 in words is "twenty trillion, two billion, one hundred twenty-one million, one hundred twelve thousand, two hundred one".