222021200123 has 2 divisors, whose sum is σ = 222021200124. Its totient is φ = 222021200122.

The previous prime is 222021200077. The next prime is 222021200153. The reversal of 222021200123 is 321002120222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222021200123 - 2³⁶ = 153301723387 is a prime.

It is not a weakly prime, because it can be changed into another prime (222021200153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010600061 + 111010600062.

It is an arithmetic number, because the mean of its divisors is an integer number (111010600062).

Almost surely, 2^222021200123 is an apocalyptic number.

222021200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222021200123 is an equidigital number, since it uses as much as digits as its factorization.

222021200123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 222021200123 its reverse (321002120222), we get a palindrome (543023320345).

The spelling of 222021200123 in words is "two hundred twenty-two billion, twenty-one million, two hundred thousand, one hundred twenty-three".