22101201251 has 2 divisors, whose sum is σ = 22101201252. Its totient is φ = 22101201250.

The previous prime is 22101201217. The next prime is 22101201257. The reversal of 22101201251 is 15210210122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22101201251 - 2³⁴ = 4921332067 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101201257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050600625 + 11050600626.

It is an arithmetic number, because the mean of its divisors is an integer number (11050600626).

Almost surely, 2^22101201251 is an apocalyptic number.

22101201251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101201251 is an equidigital number, since it uses as much as digits as its factorization.

22101201251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 22101201251 its reverse (15210210122), we get a palindrome (37311411373).

The spelling of 22101201251 in words is "twenty-two billion, one hundred one million, two hundred one thousand, two hundred fifty-one".