100990473220 has 192 divisors, whose sum is σ = 276109747200. Its totient is φ = 30152466432.

The previous prime is 100990473217. The next prime is 100990473263. The reversal of 100990473220 is 22374099001.

It is a self number, because there is not a number n which added to its sum of digits gives 100990473220.

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, 3039256 + ... + 3072304.

It is an arithmetic number, because the mean of its divisors is an integer number (1438071600).

Almost surely, 2^100990473220 is an apocalyptic number.

100990473220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100990473220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138054873600).

100990473220 is an abundant number, since it is smaller than the sum of its proper divisors (175119273980).

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

100990473220 is a wasteful number, since it uses less digits than its factorization.

100990473220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33174 (or 33172 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 100990473220 in words is "one hundred billion, nine hundred ninety million, four hundred seventy-three thousand, two hundred twenty".