20001000122022 has 32 divisors (see below), whose sum is σ = 40661279234784. Its totient is φ = 6557139072000.

The previous prime is 20001000121913. The next prime is 20001000122063. The reversal of 20001000122022 is 22022100010002.

It is a super-2 number, since 2×20001000122022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001000121989 and 20001000122007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1899772 + ... + 6603872.

It is an arithmetic number, because the mean of its divisors is an integer number (1270664976087).

Almost surely, 2^{20001000122022} is an apocalyptic number.

20001000122022 is an abundant number, since it is smaller than the sum of its proper divisors (20660279112762).

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

20001000122022 is a wasteful number, since it uses less digits than its factorization.

20001000122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715784.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20001000122022 its reverse (22022100010002), we get a palindrome (42023100132024).

The spelling of 20001000122022 in words is "twenty trillion, one billion, one hundred twenty-two thousand, twenty-two".