1223022001 has 12 divisors (see below), whose sum is σ = 1308918000. Its totient is φ = 1139592240.

The previous prime is 1223021983. The next prime is 1223022019. The reversal of 1223022001 is 1002203221.

It is an interprime number because it is at equal distance from previous prime (1223021983) and next prime (1223022019).

It is not a de Polignac number, because 1223022001 - 2⁹ = 1223021489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223032001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62050 + ... + 79348.

It is an arithmetic number, because the mean of its divisors is an integer number (109076500).

Almost surely, 2^1223022001 is an apocalyptic number.

It is an amenable number.

1223022001 is a deficient number, since it is larger than the sum of its proper divisors (85895999).

1223022001 is an equidigital number, since it uses as much as digits as its factorization.

1223022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17440 (or 17379 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1223022001 is about 34971.7314555628. The cubic root of 1223022001 is about 1069.4112698657.

Adding to 1223022001 its reverse (1002203221), we get a palindrome (2225225222).

The spelling of 1223022001 in words is "one billion, two hundred twenty-three million, twenty-two thousand, one".