1209701899008 has 108 divisors (see below), whose sum is σ = 3539926994968. Its totient is φ = 397215498240.

The previous prime is 1209701898983. The next prime is 1209701899013. The reversal of 1209701899008 is 8009981079021.

It is a super-2 number, since 2×1209701899008² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3763873 + ... + 4072608.

Almost surely, 2^{1209701899008} is an apocalyptic number.

1209701899008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1209701899008 is an abundant number, since it is smaller than the sum of its proper divisors (2330225095960).

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

1209701899008 is an equidigital number, since it uses as much as digits as its factorization.

1209701899008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836570 (or 7836553 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The spelling of 1209701899008 in words is "one trillion, two hundred nine billion, seven hundred one million, eight hundred ninety-nine thousand, eight".