100200111220020 has 192 divisors, whose sum is σ = 332067385036800. Its totient is φ = 22561048185984.

The previous prime is 100200111220019. The next prime is 100200111220057. The reversal of 100200111220020 is 20022111002001.

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

It is a junction number, because it is equal to n+sod(n) for n = 100200111219978 and 100200111220005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34955544 + ... + 37713263.

It is an arithmetic number, because the mean of its divisors is an integer number (1729517630400).

Almost surely, 2^{100200111220020} is an apocalyptic number.

100200111220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100200111220020 is an abundant number, since it is smaller than the sum of its proper divisors (231867273816780).

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

100200111220020 is a wasteful number, since it uses less digits than its factorization.

100200111220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72668907 (or 72668891 counting only the distinct ones).

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

Adding to 100200111220020 its reverse (20022111002001), we get a palindrome (120222222222021).

The spelling of 100200111220020 in words is "one hundred trillion, two hundred billion, one hundred eleven million, two hundred twenty thousand, twenty".