22154403151402 has 4 divisors (see below), whose sum is σ = 33231604727106. Its totient is φ = 11077201575700.

The previous prime is 22154403151357. The next prime is 22154403151411. The reversal of 22154403151402 is 20415130445122.

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., 21077106542361 + 1077296609041 = 4590981^2 + 1037929^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5538600787849 + ... + 5538600787852.

Almost surely, 2^{22154403151402} is an apocalyptic number.

22154403151402 is a deficient number, since it is larger than the sum of its proper divisors (11077201575704).

22154403151402 is a wasteful number, since it uses less digits than its factorization.

22154403151402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11077201575703.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 22154403151402 its reverse (20415130445122), we get a palindrome (42569533596524).

The spelling of 22154403151402 in words is "twenty-two trillion, one hundred fifty-four billion, four hundred three million, one hundred fifty-one thousand, four hundred two".