1212315906600 has 144 divisors (see below), whose sum is σ = 4089619497600. Its totient is φ = 321834430080.

The previous prime is 1212315906583. The next prime is 1212315906617. The reversal of 1212315906600 is 66095132121.

1212315906600 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 3 + 1 + 590 + 6 + 60 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1212315906583) and next prime (1212315906617).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1108710 + ... + 1911509.

It is an arithmetic number, because the mean of its divisors is an integer number (28400135400).

Almost surely, 2^{1212315906600} is an apocalyptic number.

1212315906600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212315906600 is an abundant number, since it is smaller than the sum of its proper divisors (2877303591000).

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

1212315906600 is a wasteful number, since it uses less digits than its factorization.

1212315906600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020464 (or 3020452 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 1212315906600 in words is "one trillion, two hundred twelve billion, three hundred fifteen million, nine hundred six thousand, six hundred".