222011202100 has 18 divisors (see below), whose sum is σ = 481764308774. Its totient is φ = 88804480800.

The previous prime is 222011202053. The next prime is 222011202113. The reversal of 222011202100 is 1202110222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9768554896 + 212242647204 = 98836^2 + 460698^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1110055911 + ... + 1110056110.

Almost surely, 2^222011202100 is an apocalyptic number.

222011202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222011202100 is an abundant number, since it is smaller than the sum of its proper divisors (259753106674).

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

222011202100 is a wasteful number, since it uses less digits than its factorization.

222011202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220112035 (or 2220112028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222011202100 its reverse (1202110222), we get a palindrome (223213312322).

The spelling of 222011202100 in words is "two hundred twenty-two billion, eleven million, two hundred two thousand, one hundred".