20020012121201 has 16 divisors (see below), whose sum is σ = 20186768004480. Its totient is φ = 19853855400960.

The previous prime is 20020012121117. The next prime is 20020012121209. The reversal of 20020012121201 is 10212121002002.

It is a cyclic number.

It is not a de Polignac number, because 20020012121201 - 2²⁶ = 20019945012337 is a prime.

It is a super-3 number, since 3×20020012121201³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020012121209) 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, 164616746 + ... + 164738316.

It is an arithmetic number, because the mean of its divisors is an integer number (1261673000280).

Almost surely, 2^{20020012121201} is an apocalyptic number.

It is an amenable number.

20020012121201 is a deficient number, since it is larger than the sum of its proper divisors (166755883279).

20020012121201 is a wasteful number, since it uses less digits than its factorization.

20020012121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124024.

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

Adding to 20020012121201 its reverse (10212121002002), we get a palindrome (30232133123203).

The spelling of 20020012121201 in words is "twenty trillion, twenty billion, twelve million, one hundred twenty-one thousand, two hundred one".