1210121021119 has 2 divisors, whose sum is σ = 1210121021120. Its totient is φ = 1210121021118.

The previous prime is 1210121021077. The next prime is 1210121021167. The reversal of 1210121021119 is 9111201210121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210121021119 - 2⁷ = 1210121020991 is a prime.

It is a super-2 number, since 2×1210121021119² (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 1210121021119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210121021719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605060510559 + 605060510560.

It is an arithmetic number, because the mean of its divisors is an integer number (605060510560).

Almost surely, 2^{1210121021119} is an apocalyptic number.

1210121021119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210121021119 is an equidigital number, since it uses as much as digits as its factorization.

1210121021119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 1210121021119 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, twenty-one thousand, one hundred nineteen".