1210122121123 has 2 divisors, whose sum is σ = 1210122121124. Its totient is φ = 1210122121122.

The previous prime is 1210122121097. The next prime is 1210122121139. The reversal of 1210122121123 is 3211212210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210122121123 - 2²⁵ = 1210088566691 is a prime.

It is a super-2 number, since 2×1210122121123² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1210122121123.

It is not a weakly prime, because it can be changed into another prime (1210122121223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605061060561 + 605061060562.

It is an arithmetic number, because the mean of its divisors is an integer number (605061060562).

Almost surely, 2^{1210122121123} is an apocalyptic number.

1210122121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210122121123 is an equidigital number, since it uses as much as digits as its factorization.

1210122121123 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 19.

Adding to 1210122121123 its reverse (3211212210121), we get a palindrome (4421334331244).

The spelling of 1210122121123 in words is "one trillion, two hundred ten billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-three".