109421099370 has 512 divisors, whose sum is σ = 348912230400. Its totient is φ = 24413218560.

The previous prime is 109421099363. The next prime is 109421099383. The reversal of 109421099370 is 73990124901.

109421099370 is a `hidden beast` number, since 109 + 421 + 0 + 99 + 37 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 169120387 + ... + 169121033.

It is an arithmetic number, because the mean of its divisors is an integer number (681469200).

Almost surely, 2^109421099370 is an apocalyptic number.

109421099370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109421099370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174456115200).

109421099370 is an abundant number, since it is smaller than the sum of its proper divisors (239491131030).

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

109421099370 is a wasteful number, since it uses less digits than its factorization.

109421099370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 109421099370 in words is "one hundred nine billion, four hundred twenty-one million, ninety-nine thousand, three hundred seventy".