1214400234021 has 16 divisors (see below), whose sum is σ = 1752605737344. Its totient is φ = 743529697344.

The previous prime is 1214400234013. The next prime is 1214400234037. The reversal of 1214400234021 is 1204320044121.

It is not a de Polignac number, because 1214400234021 - 2³ = 1214400234013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1214400233982 and 1214400234000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214400254021) 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, 79023961 + ... + 79039326.

It is an arithmetic number, because the mean of its divisors is an integer number (109537858584).

Almost surely, 2^{1214400234021} is an apocalyptic number.

It is an amenable number.

1214400234021 is a deficient number, since it is larger than the sum of its proper divisors (538205503323).

1214400234021 is a wasteful number, since it uses less digits than its factorization.

1214400234021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158063500.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1214400234021 its reverse (1204320044121), we get a palindrome (2418720278142).

The spelling of 1214400234021 in words is "one trillion, two hundred fourteen billion, four hundred million, two hundred thirty-four thousand, twenty-one".