1220112102000 has 160 divisors (see below), whose sum is σ = 4291245414144. Its totient is φ = 295784736000.

The previous prime is 1220112101983. The next prime is 1220112102031. The reversal of 1220112102000 is 2012110221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9177274 + ... + 9309273.

Almost surely, 2^{1220112102000} is an apocalyptic number.

1220112102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220112102000 is an abundant number, since it is smaller than the sum of its proper divisors (3071133312144).

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

1220112102000 is a wasteful number, since it uses less digits than its factorization.

1220112102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18486584 (or 18486568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220112102000 its reverse (2012110221), we get a palindrome (1222124212221).

The spelling of 1220112102000 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred two thousand".