1390222112002 has 4 divisors (see below), whose sum is σ = 2085333168006. Its totient is φ = 695111056000.

The previous prime is 1390222111997. The next prime is 1390222112029. The reversal of 1390222112002 is 2002112220931.

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., 1336356808081 + 53865303921 = 1156009^2 + 232089^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347555527999 + ... + 347555528002.

Almost surely, 2^{1390222112002} is an apocalyptic number.

1390222112002 is a deficient number, since it is larger than the sum of its proper divisors (695111056004).

1390222112002 is an equidigital number, since it uses as much as digits as its factorization.

1390222112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695111056003.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1390222112002 its reverse (2002112220931), we get a palindrome (3392334332933).

The spelling of 1390222112002 in words is "one trillion, three hundred ninety billion, two hundred twenty-two million, one hundred twelve thousand, two".