1220023122001 has 2 divisors, whose sum is σ = 1220023122002. Its totient is φ = 1220023122000.

The previous prime is 1220023121971. The next prime is 1220023122029. The reversal of 1220023122001 is 1002213200221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1054829648401 + 165193473600 = 1027049^2 + 406440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220023122001 - 2⁵ = 1220023121969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220023122401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610011561000 + 610011561001.

It is an arithmetic number, because the mean of its divisors is an integer number (610011561001).

Almost surely, 2^{1220023122001} is an apocalyptic number.

It is an amenable number.

1220023122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220023122001 is an equidigital number, since it uses as much as digits as its factorization.

1220023122001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220023122001 its reverse (1002213200221), we get a palindrome (2222236322222).

The spelling of 1220023122001 in words is "one trillion, two hundred twenty billion, twenty-three million, one hundred twenty-two thousand, one".