11220122220997 has 2 divisors, whose sum is σ = 11220122220998. Its totient is φ = 11220122220996.

The previous prime is 11220122220961. The next prime is 11220122221031. The reversal of 11220122220997 is 79902222102211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10550549881921 + 669572339076 = 3248161^2 + 818274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220122220997 is a prime.

It is a super-2 number, since 2×11220122220997² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220122223997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610061110498 + 5610061110499.

It is an arithmetic number, because the mean of its divisors is an integer number (5610061110499).

Almost surely, 2^{11220122220997} is an apocalyptic number.

It is an amenable number.

11220122220997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220122220997 is an equidigital number, since it uses as much as digits as its factorization.

11220122220997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 11220122220997 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-seven".