222211010121100 has 1296 divisors, whose sum is σ = 673178142591360. Its totient is φ = 63052577280000.

The previous prime is 222211010121091. The next prime is 222211010121127. The reversal of 222211010121100 is 1121010112222.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 309055646541 + ... + 309055647259.

It is an arithmetic number, because the mean of its divisors is an integer number (519427579160).

Almost surely, 2^{222211010121100} is an apocalyptic number.

222211010121100 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 222211010121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336589071295680).

222211010121100 is an abundant number, since it is smaller than the sum of its proper divisors (450967132470260).

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

222211010121100 is a wasteful number, since it uses less digits than its factorization.

222211010121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222211010121100 its reverse (1121010112222), we get a palindrome (223332020233322).

The spelling of 222211010121100 in words is "two hundred twenty-two trillion, two hundred eleven billion, ten million, one hundred twenty-one thousand, one hundred".