122546661019 has 2 divisors, whose sum is σ = 122546661020. Its totient is φ = 122546661018.

The previous prime is 122546661001. The next prime is 122546661079. The reversal of 122546661019 is 910166645221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122546661019 - 2¹⁷ = 122546529947 is a prime.

It is a super-2 number, since 2×122546661019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122546661079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61273330509 + 61273330510.

It is an arithmetic number, because the mean of its divisors is an integer number (61273330510).

Almost surely, 2^122546661019 is an apocalyptic number.

122546661019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122546661019 is an equidigital number, since it uses as much as digits as its factorization.

122546661019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 122546661019 in words is "one hundred twenty-two billion, five hundred forty-six million, six hundred sixty-one thousand, nineteen".