20020212101121 has 16 divisors (see below), whose sum is σ = 26737076056320. Its totient is φ = 13325084508560.

The previous prime is 20020212101107. The next prime is 20020212101159. The reversal of 20020212101121 is 12110121202002.

It is a cyclic number.

It is not a de Polignac number, because 20020212101121 - 2²² = 20020207906817 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020212101121.

It is not an unprimeable number, because it can be changed into a prime (20020212101191) 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, 11765590 + ... + 13359248.

It is an arithmetic number, because the mean of its divisors is an integer number (1671067253520).

Almost surely, 2^{20020212101121} is an apocalyptic number.

It is an amenable number.

20020212101121 is a deficient number, since it is larger than the sum of its proper divisors (6716863955199).

20020212101121 is a wasteful number, since it uses less digits than its factorization.

20020212101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600476.

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

Adding to 20020212101121 its reverse (12110121202002), we get a palindrome (32130333303123).

The spelling of 20020212101121 in words is "twenty trillion, twenty billion, two hundred twelve million, one hundred one thousand, one hundred twenty-one".