20002111422 has 64 divisors (see below), whose sum is σ = 41369370624. Its totient is φ = 6442536960.

The previous prime is 20002111417. The next prime is 20002111429. The reversal of 20002111422 is 22411120002.

It is a super-2 number, since 2×20002111422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002111429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31204222 + ... + 31204862.

It is an arithmetic number, because the mean of its divisors is an integer number (646396416).

Almost surely, 2^20002111422 is an apocalyptic number.

20002111422 is an abundant number, since it is smaller than the sum of its proper divisors (21367259202).

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

20002111422 is a wasteful number, since it uses less digits than its factorization.

20002111422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20002111422 its reverse (22411120002), we get a palindrome (42413231424).

The spelling of 20002111422 in words is "twenty billion, two million, one hundred eleven thousand, four hundred twenty-two".