23221121386 has 4 divisors (see below), whose sum is σ = 34831682082. Its totient is φ = 11610560692.

The previous prime is 23221121269. The next prime is 23221121387. The reversal of 23221121386 is 68312112232.

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., 16159240161 + 7061881225 = 127119^2 + 84035^2 .

It is not an unprimeable number, because it can be changed into a prime (23221121387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805280345 + ... + 5805280348.

Almost surely, 2^23221121386 is an apocalyptic number.

23221121386 is a deficient number, since it is larger than the sum of its proper divisors (11610560696).

23221121386 is a wasteful number, since it uses less digits than its factorization.

23221121386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610560695.

The product of its digits is 6912, while the sum is 31.

The spelling of 23221121386 in words is "twenty-three billion, two hundred twenty-one million, one hundred twenty-one thousand, three hundred eighty-six".