1124220421997 has 2 divisors, whose sum is σ = 1124220421998. Its totient is φ = 1124220421996.

The previous prime is 1124220421991. The next prime is 1124220422027. The reversal of 1124220421997 is 7991240224211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1103201511556 + 21018910441 = 1050334^2 + 144979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124220421997 - 2²⁰ = 1124219373421 is a prime.

It is a super-2 number, since 2×1124220421997² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124220421991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562110210998 + 562110210999.

It is an arithmetic number, because the mean of its divisors is an integer number (562110210999).

Almost surely, 2^{1124220421997} is an apocalyptic number.

It is an amenable number.

1124220421997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124220421997 is an equidigital number, since it uses as much as digits as its factorization.

1124220421997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 1124220421997 in words is "one trillion, one hundred twenty-four billion, two hundred twenty million, four hundred twenty-one thousand, nine hundred ninety-seven".