1235440455212 has 6 divisors (see below), whose sum is σ = 2162020796628. Its totient is φ = 617720227604.

The previous prime is 1235440455199. The next prime is 1235440455289. The reversal of 1235440455212 is 2125540445321.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154430056898 + ... + 154430056905.

It is an arithmetic number, because the mean of its divisors is an integer number (360336799438).

Almost surely, 2^{1235440455212} is an apocalyptic number.

It is an amenable number.

1235440455212 is a deficient number, since it is larger than the sum of its proper divisors (926580341416).

1235440455212 is a wasteful number, since it uses less digits than its factorization.

1235440455212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308860113807 (or 308860113805 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 1235440455212 in words is "one trillion, two hundred thirty-five billion, four hundred forty million, four hundred fifty-five thousand, two hundred twelve".