100400424222 has 64 divisors (see below), whose sum is σ = 240226172928. Its totient is φ = 27369468000.

The previous prime is 100400424203. The next prime is 100400424227. The reversal of 100400424222 is 222424004001.

It is a super-3 number, since 3×100400424222³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100400424227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450604 + ... + 635487.

It is an arithmetic number, because the mean of its divisors is an integer number (3753533952).

Almost surely, 2^100400424222 is an apocalyptic number.

100400424222 is an abundant number, since it is smaller than the sum of its proper divisors (139825748706).

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

100400424222 is a wasteful number, since it uses less digits than its factorization.

100400424222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086205.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 100400424222 its reverse (222424004001), we get a palindrome (322824428223).

The spelling of 100400424222 in words is "one hundred billion, four hundred million, four hundred twenty-four thousand, two hundred twenty-two".