13214221234402 has 4 divisors (see below), whose sum is σ = 19821331851606. Its totient is φ = 6607110617200.

The previous prime is 13214221234399. The next prime is 13214221234421. The reversal of 13214221234402 is 20443212241231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12993566506281 + 220654728121 = 3604659^2 + 469739^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3303555308599 + ... + 3303555308602.

Almost surely, 2^{13214221234402} is an apocalyptic number.

13214221234402 is a deficient number, since it is larger than the sum of its proper divisors (6607110617204).

13214221234402 is an equidigital number, since it uses as much as digits as its factorization.

13214221234402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607110617203.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13214221234402 its reverse (20443212241231), we get a palindrome (33657433475633).

The spelling of 13214221234402 in words is "thirteen trillion, two hundred fourteen billion, two hundred twenty-one million, two hundred thirty-four thousand, four hundred two".