222201011100 has 36 divisors (see below), whose sum is σ = 642901592984. Its totient is φ = 59253602880.

The previous prime is 222201011069. The next prime is 222201011101. The reversal of 222201011100 is 1110102222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201011101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370334719 + ... + 370335318.

Almost surely, 2^222201011100 is an apocalyptic number.

222201011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201011100 is an abundant number, since it is smaller than the sum of its proper divisors (420700581884).

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

222201011100 is a wasteful number, since it uses less digits than its factorization.

222201011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740670054 (or 740670047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 222201011100 its reverse (1110102222), we get a palindrome (223311113322).

The spelling of 222201011100 in words is "two hundred twenty-two billion, two hundred one million, eleven thousand, one hundred".