20011000022 has 16 divisors (see below), whose sum is σ = 32392967040. Its totient is φ = 9216558912.

The previous prime is 20011000021. The next prime is 20011000027. The reversal of 20011000022 is 22000011002.

It is a junction number, because it is equal to n+sod(n) for n = 20010999973 and 20011000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011000021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790943 + ... + 815850.

It is an arithmetic number, because the mean of its divisors is an integer number (2024560440).

Almost surely, 2^20011000022 is an apocalyptic number.

20011000022 is a deficient number, since it is larger than the sum of its proper divisors (12381967018).

20011000022 is a wasteful number, since it uses less digits than its factorization.

20011000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607287.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20011000022 its reverse (22000011002), we get a palindrome (42011011024).

The spelling of 20011000022 in words is "twenty billion, eleven million, twenty-two", and thus it is an aban number and an uban number.