1222112211102 has 32 divisors (see below), whose sum is σ = 2742694083360. Its totient is φ = 403337361600.

The previous prime is 1222112211079. The next prime is 1222112211109. The reversal of 1222112211102 is 2011122112221.

1222112211102 is a `hidden beast` number, since 122 + 211 + 221 + 110 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112211109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112032703 + ... + 112043610.

It is an arithmetic number, because the mean of its divisors is an integer number (85709190105).

Almost surely, 2^{1222112211102} is an apocalyptic number.

1222112211102 is an abundant number, since it is smaller than the sum of its proper divisors (1520581872258).

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

1222112211102 is a wasteful number, since it uses less digits than its factorization.

1222112211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224076425 (or 224076419 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1222112211102 its reverse (2011122112221), we get a palindrome (3233234323323).

The spelling of 1222112211102 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, one hundred two".