100000301220 has 240 divisors, whose sum is σ = 336714740208. Its totient is φ = 24753807360.

The previous prime is 100000301213. The next prime is 100000301249. The reversal of 100000301220 is 22103000001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12974121216 + 87026180004 = 113904^2 + 295002^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1985550 + ... + 2035290.

Almost surely, 2^100000301220 is an apocalyptic number.

100000301220 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 100000301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168357370104).

100000301220 is an abundant number, since it is smaller than the sum of its proper divisors (236714438988).

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

100000301220 is a wasteful number, since it uses less digits than its factorization.

100000301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49852 (or 49841 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 100000301220 its reverse (22103000001), we get a palindrome (122103301221).

The spelling of 100000301220 in words is "one hundred billion, three hundred one thousand, two hundred twenty".