20222112012021 has 12 divisors (see below), whose sum is σ = 29291081470560. Its totient is φ = 13443855337320.

The previous prime is 20222112011987. The next prime is 20222112012023. The reversal of 20222112012021 is 12021021122202.

It is a happy number.

20222112012021 is a `hidden beast` number, since 202 + 221 + 1 + 201 + 20 + 21 = 666.

It is not a de Polignac number, because 20222112012021 - 2³¹ = 20219964528373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20222112011985 and 20222112012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222112012023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3129385815 + ... + 3129392276.

It is an arithmetic number, because the mean of its divisors is an integer number (2440923455880).

Almost surely, 2^{20222112012021} is an apocalyptic number.

It is an amenable number.

20222112012021 is a deficient number, since it is larger than the sum of its proper divisors (9068969458539).

20222112012021 is a wasteful number, since it uses less digits than its factorization.

20222112012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258778456 (or 6258778453 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20222112012021 its reverse (12021021122202), we get a palindrome (32243133134223).

The spelling of 20222112012021 in words is "twenty trillion, two hundred twenty-two billion, one hundred twelve million, twelve thousand, twenty-one".