20021210222022 has 12 divisors (see below), whose sum is σ = 43379288814420. Its totient is φ = 6673736740668.

The previous prime is 20021210221981. The next prime is 20021210222077. The reversal of 20021210222022 is 22022201212002.

20021210222022 is a `hidden beast` number, since 200 + 212 + 10 + 2 + 220 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1112289456779 = 20021210222022 / (2 + 0 + 0 + 2 + 1 + 2 + 1 + 0 + 2 + 2 + 2 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20021210221986 and 20021210222004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556144728372 + ... + 556144728407.

It is an arithmetic number, because the mean of its divisors is an integer number (3614940734535).

Almost surely, 2^{20021210222022} is an apocalyptic number.

20021210222022 is an abundant number, since it is smaller than the sum of its proper divisors (23358078592398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021210222022 is a wasteful number, since it uses less digits than its factorization.

20021210222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112289456787 (or 1112289456784 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20021210222022 its reverse (22022201212002), we get a palindrome (42043411434024).

The spelling of 20021210222022 in words is "twenty trillion, twenty-one billion, two hundred ten million, two hundred twenty-two thousand, twenty-two".