122210012251 has 2 divisors, whose sum is σ = 122210012252. Its totient is φ = 122210012250.

The previous prime is 122210012189. The next prime is 122210012279. The reversal of 122210012251 is 152210012221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (152210012221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122210012251 - 2²⁹ = 121673141339 is a prime.

It is not a weakly prime, because it can be changed into another prime (122210016251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105006125 + 61105006126.

It is an arithmetic number, because the mean of its divisors is an integer number (61105006126).

Almost surely, 2^122210012251 is an apocalyptic number.

122210012251 is a deficient number, since it is larger than the sum of its proper divisors (1).

122210012251 is an equidigital number, since it uses as much as digits as its factorization.

122210012251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 122210012251 its reverse (152210012221), we get a palindrome (274420024472).

The spelling of 122210012251 in words is "one hundred twenty-two billion, two hundred ten million, twelve thousand, two hundred fifty-one".