20220021012222 has 48 divisors (see below), whose sum is σ = 45038480228352. Its totient is φ = 6552916448400.

The previous prime is 20220021012209. The next prime is 20220021012229. The reversal of 20220021012222 is 22221012002202.

20220021012222 is a `hidden beast` number, since 2 + 0 + 220 + 0 + 210 + 12 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20220021012195 and 20220021012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220021012229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79013758 + ... + 79269249.

It is an arithmetic number, because the mean of its divisors is an integer number (938301671424).

Almost surely, 2^{20220021012222} is an apocalyptic number.

20220021012222 is an abundant number, since it is smaller than the sum of its proper divisors (24818459216130).

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

20220021012222 is a wasteful number, since it uses less digits than its factorization.

20220021012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158283213 (or 158283210 counting only the distinct ones).

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

Adding to 20220021012222 its reverse (22221012002202), we get a palindrome (42441033014424).

The spelling of 20220021012222 in words is "twenty trillion, two hundred twenty billion, twenty-one million, twelve thousand, two hundred twenty-two".