1222210110100 has 72 divisors (see below), whose sum is σ = 3190611690560. Its totient is φ = 396988542720.

The previous prime is 1222210110067. The next prime is 1222210110169. The reversal of 1222210110100 is 10110122221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45934449 + ... + 45961048.

Almost surely, 2^{1222210110100} is an apocalyptic number.

1222210110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222210110100 is an abundant number, since it is smaller than the sum of its proper divisors (1968401580460).

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

1222210110100 is a wasteful number, since it uses less digits than its factorization.

1222210110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91895537 (or 91895530 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1222210110100 its reverse (10110122221), we get a palindrome (1232320232321).

The spelling of 1222210110100 in words is "one trillion, two hundred twenty-two billion, two hundred ten million, one hundred ten thousand, one hundred".