20012221112022 has 12 divisors (see below), whose sum is σ = 43359812409420. Its totient is φ = 6670740370668.

The previous prime is 20012221111979. The next prime is 20012221112041. The reversal of 20012221112022 is 22021112221002.

It is a happy number.

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: 1111790061779 = 20012221112022 / (2 + 0 + 0 + 1 + 2 + 2 + 2 + 1 + 1 + 1 + 2 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20012221111986 and 20012221112004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555895030872 + ... + 555895030907.

It is an arithmetic number, because the mean of its divisors is an integer number (3613317700785).

Almost surely, 2^{20012221112022} is an apocalyptic number.

20012221112022 is an abundant number, since it is smaller than the sum of its proper divisors (23347591297398).

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

20012221112022 is a wasteful number, since it uses less digits than its factorization.

20012221112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111790061787 (or 1111790061784 counting only the distinct ones).

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

Adding to 20012221112022 its reverse (22021112221002), we get a palindrome (42033333333024).

The spelling of 20012221112022 in words is "twenty trillion, twelve billion, two hundred twenty-one million, one hundred twelve thousand, twenty-two".