20220201122100 has 144 divisors (see below), whose sum is σ = 67803176318976. Its totient is φ = 4556665008000.

The previous prime is 20220201122063. The next prime is 20220201122111. The reversal of 20220201122100 is 122110202202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20220201122100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67658416 + ... + 67956615.

It is an arithmetic number, because the mean of its divisors is an integer number (470855391104).

Almost surely, 2^{20220201122100} is an apocalyptic number.

20220201122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220201122100 is an abundant number, since it is smaller than the sum of its proper divisors (47582975196876).

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

20220201122100 is a wasteful number, since it uses less digits than its factorization.

20220201122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135615126 (or 135615119 counting only the distinct ones).

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

Adding to 20220201122100 its reverse (122110202202), we get a palindrome (20342311324302).

The spelling of 20220201122100 in words is "twenty trillion, two hundred twenty billion, two hundred one million, one hundred twenty-two thousand, one hundred".