22101431402 has 4 divisors (see below), whose sum is σ = 33152147106. Its totient is φ = 11050715700.

The previous prime is 22101431381. The next prime is 22101431449. The reversal of 22101431402 is 20413410122.

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., 19515810601 + 2585620801 = 139699^2 + 50849^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525357849 + ... + 5525357852.

Almost surely, 2^22101431402 is an apocalyptic number.

22101431402 is a deficient number, since it is larger than the sum of its proper divisors (11050715704).

22101431402 is a wasteful number, since it uses less digits than its factorization.

22101431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11050715703.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22101431402 its reverse (20413410122), we get a palindrome (42514841524).

The spelling of 22101431402 in words is "twenty-two billion, one hundred one million, four hundred thirty-one thousand, four hundred two".