40220012100 has 144 divisors (see below), whose sum is σ = 117779614400. Its totient is φ = 10595819520.

The previous prime is 40220012099. The next prime is 40220012221. The reversal of 40220012100 is 121002204.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24996096 + ... + 24997704.

Almost surely, 2^40220012100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40220012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58889807200).

40220012100 is an abundant number, since it is smaller than the sum of its proper divisors (77559602300).

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

40220012100 is a wasteful number, since it uses less digits than its factorization.

40220012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582 (or 2575 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 40220012100 its reverse (121002204), we get a palindrome (40341014304).

The spelling of 40220012100 in words is "forty billion, two hundred twenty million, twelve thousand, one hundred".