1220310000000 has 1536 divisors, whose sum is σ = 5438657952000. Its totient is φ = 255744000000.

The previous prime is 1220309999969. The next prime is 1220310000023. The reversal of 1220310000000 is 130221.

It is a happy number.

It is a super-2 number, since 2×1220310000000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8189999926 + ... + 8190000074.

Almost surely, 2^{1220310000000} is an apocalyptic number.

1220310000000 is a gapful number since it is divisible by the number (10) 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 1220310000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2719328976000).

1220310000000 is an abundant number, since it is smaller than the sum of its proper divisors (4218347952000).

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

1220310000000 is an frugal number, since it uses more digits than its factorization.

1220310000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 1220310000000 its reverse (130221), we get a palindrome (1220310130221).

The spelling of 1220310000000 in words is "one trillion, two hundred twenty billion, three hundred ten million", and thus it is an aban number.