22151050331 has 2 divisors, whose sum is σ = 22151050332. Its totient is φ = 22151050330.

The previous prime is 22151050267. The next prime is 22151050333. The reversal of 22151050331 is 13305015122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22151050331 - 2⁶ = 22151050267 is a prime.

It is a super-2 number, since 2×22151050331² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 22151050333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22151050297 and 22151050306.

It is not a weakly prime, because it can be changed into another prime (22151050333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11075525165 + 11075525166.

It is an arithmetic number, because the mean of its divisors is an integer number (11075525166).

Almost surely, 2^22151050331 is an apocalyptic number.

22151050331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22151050331 is an equidigital number, since it uses as much as digits as its factorization.

22151050331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 22151050331 its reverse (13305015122), we get a palindrome (35456065453).

The spelling of 22151050331 in words is "twenty-two billion, one hundred fifty-one million, fifty thousand, three hundred thirty-one".