1226257543104 has 112 divisors (see below), whose sum is σ = 3551506922880. Its totient is φ = 370324771840.

The previous prime is 1226257543003. The next prime is 1226257543123. The reversal of 1226257543104 is 4013457526221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371994 + ... + 1609625.

It is an arithmetic number, because the mean of its divisors is an integer number (31709883240).

Almost surely, 2^{1226257543104} is an apocalyptic number.

It is an amenable number.

1226257543104 is an abundant number, since it is smaller than the sum of its proper divisors (2325249379776).

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

1226257543104 is a wasteful number, since it uses less digits than its factorization.

1226257543104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981938 (or 1981928 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 1226257543104 in words is "one trillion, two hundred twenty-six billion, two hundred fifty-seven million, five hundred forty-three thousand, one hundred four".