20022122211100 has 36 divisors (see below), whose sum is σ = 43455563935000. Its totient is φ = 8007455568960.

The previous prime is 20022122211037. The next prime is 20022122211101. The reversal of 20022122211100 is 111222122002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022122211101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16838670 + ... + 17988469.

Almost surely, 2^{20022122211100} is an apocalyptic number.

20022122211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022122211100 is an abundant number, since it is smaller than the sum of its proper divisors (23433441723900).

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

20022122211100 is a wasteful number, since it uses less digits than its factorization.

20022122211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34832902 (or 34832895 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20022122211100 its reverse (111222122002), we get a palindrome (20133344333102).

The spelling of 20022122211100 in words is "twenty trillion, twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, one hundred".