1212120111968 has 12 divisors (see below), whose sum is σ = 2386361470500. Its totient is φ = 606060055968.

The previous prime is 1212120111967. The next prime is 1212120112031. The reversal of 1212120111968 is 8691110212121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212120111967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18939376718 + ... + 18939376781.

It is an arithmetic number, because the mean of its divisors is an integer number (198863455875).

Almost surely, 2^{1212120111968} is an apocalyptic number.

It is an amenable number.

1212120111968 is a deficient number, since it is larger than the sum of its proper divisors (1174241358532).

1212120111968 is an equidigital number, since it uses as much as digits as its factorization.

1212120111968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37878753509 (or 37878753501 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 1212120111968 in words is "one trillion, two hundred twelve billion, one hundred twenty million, one hundred eleven thousand, nine hundred sixty-eight".