219227312100 has 72 divisors (see below), whose sum is σ = 634633005888. Its totient is φ = 58429712000.

The previous prime is 219227312099. The next prime is 219227312119. The reversal of 219227312100 is 1213722912.

It is a super-2 number, since 2×219227312100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378097 + ... + 762503.

It is an arithmetic number, because the mean of its divisors is an integer number (8814347304).

Almost surely, 2^219227312100 is an apocalyptic number.

219227312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219227312100 is an abundant number, since it is smaller than the sum of its proper divisors (415405693788).

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

219227312100 is a wasteful number, since it uses less digits than its factorization.

219227312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386325 (or 386318 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 219227312100 in words is "two hundred nineteen billion, two hundred twenty-seven million, three hundred twelve thousand, one hundred".