1225477275000 has 384 divisors, whose sum is σ = 4312343992320. Its totient is φ = 287496000000.

The previous prime is 1225477274941. The next prime is 1225477275007. The reversal of 1225477275000 is 5727745221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225477275007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25551042 + ... + 25598958.

It is an arithmetic number, because the mean of its divisors is an integer number (11230062480).

Almost surely, 2^{1225477275000} is an apocalyptic number.

1225477275000 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 1225477275000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2156171996160).

1225477275000 is an abundant number, since it is smaller than the sum of its proper divisors (3086866717320).

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

1225477275000 is a wasteful number, since it uses less digits than its factorization.

1225477275000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47993 (or 47969 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 1225477275000 in words is "one trillion, two hundred twenty-five billion, four hundred seventy-seven million, two hundred seventy-five thousand".