1220311425116 has 24 divisors (see below), whose sum is σ = 2506585632096. Its totient is φ = 508855728960.

The previous prime is 1220311425107. The next prime is 1220311425127. The reversal of 1220311425116 is 6115241130221.

It is a happy number.

It is a super-2 number, since 2×1220311425116² (a number of 25 digits) contains 22 as substring.

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, 588952355 + ... + 588954426.

It is an arithmetic number, because the mean of its divisors is an integer number (104441068004).

Almost surely, 2^{1220311425116} is an apocalyptic number.

It is an amenable number.

1220311425116 is an abundant number, since it is smaller than the sum of its proper divisors (1286274206980).

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

1220311425116 is a wasteful number, since it uses less digits than its factorization.

1220311425116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177906829 (or 1177906827 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 1220311425116 its reverse (6115241130221), we get a palindrome (7335552555337).

The spelling of 1220311425116 in words is "one trillion, two hundred twenty billion, three hundred eleven million, four hundred twenty-five thousand, one hundred sixteen".