1220412001 has 2 divisors, whose sum is σ = 1220412002. Its totient is φ = 1220412000.

The previous prime is 1220411989. The next prime is 1220412013. The reversal of 1220412001 is 1002140221.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1220411989) and next prime (1220412013).

It can be written as a sum of positive squares in only one way, i.e., 1181984400 + 38427601 = 34380^2 + 6199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220412001 - 2²⁷ = 1086194273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220412041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610206000 + 610206001.

It is an arithmetic number, because the mean of its divisors is an integer number (610206001).

Almost surely, 2^1220412001 is an apocalyptic number.

It is an amenable number.

1220412001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220412001 is an equidigital number, since it uses as much as digits as its factorization.

1220412001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1220412001 is about 34934.3956724601. The cubic root of 1220412001 is about 1068.6499994849.

Adding to 1220412001 its reverse (1002140221), we get a palindrome (2222552222).

The spelling of 1220412001 in words is "one billion, two hundred twenty million, four hundred twelve thousand, one".