1227740940442 has 32 divisors (see below), whose sum is σ = 1952172604800. Its totient is φ = 578101382208.

The previous prime is 1227740940407. The next prime is 1227740940451. The reversal of 1227740940442 is 2440490477221.

It is a junction number, because it is equal to n+sod(n) for n = 1227740940392 and 1227740940401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1421083 + ... + 2115409.

It is an arithmetic number, because the mean of its divisors is an integer number (61005393900).

Almost surely, 2^{1227740940442} is an apocalyptic number.

1227740940442 is a deficient number, since it is larger than the sum of its proper divisors (724431664358).

1227740940442 is a wasteful number, since it uses less digits than its factorization.

1227740940442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695110.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 1227740940442 in words is "one trillion, two hundred twenty-seven billion, seven hundred forty million, nine hundred forty thousand, four hundred forty-two".