22030402251 has 64 divisors (see below), whose sum is σ = 35243195904. Its totient is φ = 12063667200.

The previous prime is 22030402211. The next prime is 22030402313. The reversal of 22030402251 is 15220403022.

It is a de Polignac number, because none of the positive numbers 2^k-22030402251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22030402211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12800071 + ... + 12801791.

It is an arithmetic number, because the mean of its divisors is an integer number (550674936).

Almost surely, 2^22030402251 is an apocalyptic number.

22030402251 is a deficient number, since it is larger than the sum of its proper divisors (13212793653).

22030402251 is a wasteful number, since it uses less digits than its factorization.

22030402251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 22030402251 its reverse (15220403022), we get a palindrome (37250805273).

The spelling of 22030402251 in words is "twenty-two billion, thirty million, four hundred two thousand, two hundred fifty-one".