1214052021457 has 16 divisors (see below), whose sum is σ = 1345018030272. Its totient is φ = 1086574245120.

The previous prime is 1214052021451. The next prime is 1214052021499. The reversal of 1214052021457 is 7541202504121.

It is a cyclic number.

It is not a de Polignac number, because 1214052021457 - 2¹¹ = 1214052019409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214052021451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942748 + ... + 1821229.

It is an arithmetic number, because the mean of its divisors is an integer number (84063626892).

Almost surely, 2^{1214052021457} is an apocalyptic number.

It is an amenable number.

1214052021457 is a deficient number, since it is larger than the sum of its proper divisors (130966008815).

1214052021457 is a wasteful number, since it uses less digits than its factorization.

1214052021457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764608.

The product of its (nonzero) digits is 22400, while the sum is 34.

Adding to 1214052021457 its reverse (7541202504121), we get a palindrome (8755254525578).

The spelling of 1214052021457 in words is "one trillion, two hundred fourteen billion, fifty-two million, twenty-one thousand, four hundred fifty-seven".