20211222002022 has 24 divisors (see below), whose sum is σ = 43795473228000. Its totient is φ = 6736382889360.

The previous prime is 20211222002003. The next prime is 20211222002051. The reversal of 20211222002022 is 22020022211202.

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 = 20211222001986 and 20211222002004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57412254 + ... + 57763217.

It is an arithmetic number, because the mean of its divisors is an integer number (1824811384500).

Almost surely, 2^{20211222002022} is an apocalyptic number.

20211222002022 is an abundant number, since it is smaller than the sum of its proper divisors (23584251225978).

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

20211222002022 is a wasteful number, since it uses less digits than its factorization.

20211222002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115185228 (or 115185225 counting only the distinct ones).

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

Adding to 20211222002022 its reverse (22020022211202), we get a palindrome (42231244213224).

The spelling of 20211222002022 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, two thousand, twenty-two".