1220502100000 has 72 divisors (see below), whose sum is σ = 3003387403716. Its totient is φ = 488200800000.

The previous prime is 1220502099997. The next prime is 1220502100003. The reversal of 1220502100000 is 12050221.

It is an interprime number because it is at equal distance from previous prime (1220502099997) and next prime (1220502100003).

It can be written as a sum of positive squares in 6 ways, for example, as 263337290896 + 957164809104 = 513164^2 + 978348^2 .

It is a super-2 number, since 2×1220502100000² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220502100003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6002511 + ... + 6202510.

Almost surely, 2^{1220502100000} is an apocalyptic number.

1220502100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220502100000 is an abundant number, since it is smaller than the sum of its proper divisors (1782885303716).

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

1220502100000 is an frugal number, since it uses more digits than its factorization.

1220502100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12205056 (or 12205028 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 1220502100000 its reverse (12050221), we get a palindrome (1220514150221).

The spelling of 1220502100000 in words is "one trillion, two hundred twenty billion, five hundred two million, one hundred thousand".