1212014213391 has 8 divisors (see below), whose sum is σ = 1616056891264. Its totient is φ = 807990505560.

The previous prime is 1212014213353. The next prime is 1212014213437. The reversal of 1212014213391 is 1933124102121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1212014213391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212014213351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4592755 + ... + 4849476.

It is an arithmetic number, because the mean of its divisors is an integer number (202007111408).

Almost surely, 2^{1212014213391} is an apocalyptic number.

1212014213391 is a deficient number, since it is larger than the sum of its proper divisors (404042677873).

1212014213391 is an equidigital number, since it uses as much as digits as its factorization.

1212014213391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485021.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 1212014213391 in words is "one trillion, two hundred twelve billion, fourteen million, two hundred thirteen thousand, three hundred ninety-one".