1225116613000 has 128 divisors (see below), whose sum is σ = 3356222688000. Its totient is φ = 409795008000.

The previous prime is 1225116612991. The next prime is 1225116613009. The reversal of 1225116613000 is 3166115221.

It is an interprime number because it is at equal distance from previous prime (1225116612991) and next prime (1225116613009).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1225116613000.

It is not an unprimeable number, because it can be changed into a prime (1225116613009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1847350 + ... + 2421349.

It is an arithmetic number, because the mean of its divisors is an integer number (26220489750).

Almost surely, 2^{1225116613000} is an apocalyptic number.

1225116613000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225116613000 is an abundant number, since it is smaller than the sum of its proper divisors (2131106075000).

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

1225116613000 is a wasteful number, since it uses less digits than its factorization.

1225116613000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268768 (or 4268754 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 1225116613000 in words is "one trillion, two hundred twenty-five billion, one hundred sixteen million, six hundred thirteen thousand".