20020122011100 has 72 divisors (see below), whose sum is σ = 58021267717168. Its totient is φ = 5329816128000.

The previous prime is 20020122011023. The next prime is 20020122011107. The reversal of 20020122011100 is 111022102002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020122011107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55338619 + ... + 55699218.

Almost surely, 2^{20020122011100} is an apocalyptic number.

20020122011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020122011100 is an abundant number, since it is smaller than the sum of its proper divisors (38001145706068).

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

20020122011100 is a wasteful number, since it uses less digits than its factorization.

20020122011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111038455 (or 111038448 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20020122011100 its reverse (111022102002), we get a palindrome (20131144113102).

The spelling of 20020122011100 in words is "twenty trillion, twenty billion, one hundred twenty-two million, eleven thousand, one hundred".