210222020123 has 2 divisors, whose sum is σ = 210222020124. Its totient is φ = 210222020122.

The previous prime is 210222020101. The next prime is 210222020149. The reversal of 210222020123 is 321020222012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210222020123 - 2⁸ = 210222019867 is a prime.

It is not a weakly prime, because it can be changed into another prime (210222020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111010061 + 105111010062.

It is an arithmetic number, because the mean of its divisors is an integer number (105111010062).

Almost surely, 2^210222020123 is an apocalyptic number.

210222020123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222020123 is an equidigital number, since it uses as much as digits as its factorization.

210222020123 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 210222020123 its reverse (321020222012), we get a palindrome (531242242135).

The spelling of 210222020123 in words is "two hundred ten billion, two hundred twenty-two million, twenty thousand, one hundred twenty-three".