1222201000023 has 4 divisors (see below), whose sum is σ = 1629601333368. Its totient is φ = 814800666680.

The previous prime is 1222201000021. The next prime is 1222201000043. The reversal of 1222201000023 is 3200001022221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222201000023 - 2¹ = 1222201000021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222200999966 and 1222201000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222201000021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203700166668 + ... + 203700166673.

It is an arithmetic number, because the mean of its divisors is an integer number (407400333342).

Almost surely, 2^{1222201000023} is an apocalyptic number.

1222201000023 is a deficient number, since it is larger than the sum of its proper divisors (407400333345).

1222201000023 is an equidigital number, since it uses as much as digits as its factorization.

1222201000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407400333344.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1222201000023 its reverse (3200001022221), we get a palindrome (4422202022244).

The spelling of 1222201000023 in words is "one trillion, two hundred twenty-two billion, two hundred one million, twenty-three", and thus it is an aban number.