2012022020021 has 16 divisors (see below), whose sum is σ = 2191307489280. Its totient is φ = 1836241841280.

The previous prime is 2012022020009. The next prime is 2012022020027. The reversal of 2012022020021 is 1200202202102.

It is a cyclic number.

It is not a de Polignac number, because 2012022020021 - 2²² = 2012017825717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012022019978 and 2012022020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012022020027) 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, 16822196 + ... + 16941378.

It is an arithmetic number, because the mean of its divisors is an integer number (136956718080).

Almost surely, 2^{2012022020021} is an apocalyptic number.

It is an amenable number.

2012022020021 is a deficient number, since it is larger than the sum of its proper divisors (179285469259).

2012022020021 is a wasteful number, since it uses less digits than its factorization.

2012022020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133876.

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

Adding to 2012022020021 its reverse (1200202202102), we get a palindrome (3212224222123).

The spelling of 2012022020021 in words is "two trillion, twelve billion, twenty-two million, twenty thousand, twenty-one".