222222111120100 has 216 divisors, whose sum is σ = 604432509551808. Its totient is φ = 70291187769600.

The previous prime is 222222111120091. The next prime is 222222111120109. The reversal of 222222111120100 is 1021111222222.

It is an interprime number because it is at equal distance from previous prime (222222111120091) and next prime (222222111120109).

It is not an unprimeable number, because it can be changed into a prime (222222111120109) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 115682059 + ... + 117587341.

Almost surely, 2^{222222111120100} is an apocalyptic number.

222222111120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222111120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302216254775904).

222222111120100 is an abundant number, since it is smaller than the sum of its proper divisors (382210398431708).

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

222222111120100 is a wasteful number, since it uses less digits than its factorization.

222222111120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907155 (or 1907141 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222222111120100 its reverse (1021111222222), we get a palindrome (223243222342322).

The spelling of 222222111120100 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty thousand, one hundred".