2222516100 has 72 divisors (see below), whose sum is σ = 7349126848. Its totient is φ = 508003200.

The previous prime is 2222516083. The next prime is 2222516113. The reversal of 2222516100 is 16152222.

It is a happy number.

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

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, 527071 + ... + 531270.

Almost surely, 2^2222516100 is an apocalyptic number.

2222516100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222516100 is an abundant number, since it is smaller than the sum of its proper divisors (5126610748).

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

2222516100 is a wasteful number, since it uses less digits than its factorization.

2222516100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058365 (or 1058358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2222516100 is about 47143.5690205992. The cubic root of 2222516100 is about 1305.0134024842.

Adding to 2222516100 its reverse (16152222), we get a palindrome (2238668322).

The spelling of 2222516100 in words is "two billion, two hundred twenty-two million, five hundred sixteen thousand, one hundred".