1214555214551 has 8 divisors (see below), whose sum is σ = 1388070766464. Its totient is φ = 1041041578680.

The previous prime is 1214555214547. The next prime is 1214555214553. The reversal of 1214555214551 is 1554125554121.

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

It is a cyclic number.

It is not a de Polignac number, because 1214555214551 - 2² = 1214555214547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214555214499 and 1214555214508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214555214553) 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, 1339676 + ... + 2055198.

It is an arithmetic number, because the mean of its divisors is an integer number (173508845808).

Almost surely, 2^{1214555214551} is an apocalyptic number.

1214555214551 is a deficient number, since it is larger than the sum of its proper divisors (173515551913).

1214555214551 is an equidigital number, since it uses as much as digits as its factorization.

1214555214551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958021.

The product of its digits is 200000, while the sum is 41.

The spelling of 1214555214551 in words is "one trillion, two hundred fourteen billion, five hundred fifty-five million, two hundred fourteen thousand, five hundred fifty-one".