1220220010123 has 2 divisors, whose sum is σ = 1220220010124. Its totient is φ = 1220220010122.

The previous prime is 1220220010099. The next prime is 1220220010151. The reversal of 1220220010123 is 3210100220221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220220010123 - 2¹⁷ = 1220219879051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220220010097 and 1220220010106.

It is not a weakly prime, because it can be changed into another prime (1220220310123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110005061 + 610110005062.

It is an arithmetic number, because the mean of its divisors is an integer number (610110005062).

Almost surely, 2^{1220220010123} is an apocalyptic number.

1220220010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220220010123 is an equidigital number, since it uses as much as digits as its factorization.

1220220010123 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 1220220010123 its reverse (3210100220221), we get a palindrome (4430320230344).

The spelling of 1220220010123 in words is "one trillion, two hundred twenty billion, two hundred twenty million, ten thousand, one hundred twenty-three".