122262281 has 2 divisors, whose sum is σ = 122262282. Its totient is φ = 122262280.

The previous prime is 122262263. The next prime is 122262307. The reversal of 122262281 is 182262221.

It is an a-pointer prime, because the next prime (122262307) can be obtained adding 122262281 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102191881 + 20070400 = 10109^2 + 4480^2 .

It is a cyclic number.

It is not a de Polignac number, because 122262281 - 2²² = 118067977 is a prime.

It is a super-2 number, since 2×122262281² = 29896130710645922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122262281.

It is not a weakly prime, because it can be changed into another prime (122262211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61131140 + 61131141.

It is an arithmetic number, because the mean of its divisors is an integer number (61131141).

Almost surely, 2^122262281 is an apocalyptic number.

It is an amenable number.

122262281 is a deficient number, since it is larger than the sum of its proper divisors (1).

122262281 is an equidigital number, since it uses as much as digits as its factorization.

122262281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 26.

The square root of 122262281 is about 11057.2275458182. The cubic root of 122262281 is about 496.3227296661.

The spelling of 122262281 in words is "one hundred twenty-two million, two hundred sixty-two thousand, two hundred eighty-one".