1222021100112 has 40 divisors (see below), whose sum is σ = 3159060691104. Its totient is φ = 407059999104.

The previous prime is 1222021100089. The next prime is 1222021100123. The reversal of 1222021100112 is 2110011202221.

It is a super-3 number, since 3×1222021100112³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222021100091 and 1222021100100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8691018 + ... + 8830505.

Almost surely, 2^{1222021100112} is an apocalyptic number.

1222021100112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222021100112 is an abundant number, since it is smaller than the sum of its proper divisors (1937039590992).

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

1222021100112 is a wasteful number, since it uses less digits than its factorization.

1222021100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522987 (or 17522981 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222021100112 its reverse (2110011202221), we get a palindrome (3332032302333).

The spelling of 1222021100112 in words is "one trillion, two hundred twenty-two billion, twenty-one million, one hundred thousand, one hundred twelve".