20000222012021 has 16 divisors (see below), whose sum is σ = 20100948154560. Its totient is φ = 19899791408640.

The previous prime is 20000222011993. The next prime is 20000222012027. The reversal of 20000222012021 is 12021022200002.

It is a cyclic number.

It is not a de Polignac number, because 20000222012021 - 2¹⁰ = 20000222010997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000222011987 and 20000222012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000222012027) 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, 407170955 + ... + 407220071.

It is an arithmetic number, because the mean of its divisors is an integer number (1256309259660).

Almost surely, 2^{20000222012021} is an apocalyptic number.

It is an amenable number.

20000222012021 is a deficient number, since it is larger than the sum of its proper divisors (100726142539).

20000222012021 is a wasteful number, since it uses less digits than its factorization.

20000222012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52084.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20000222012021 its reverse (12021022200002), we get a palindrome (32021244212023).

The spelling of 20000222012021 in words is "twenty trillion, two hundred twenty-two million, twelve thousand, twenty-one".