1200121121119 has 2 divisors, whose sum is σ = 1200121121120. Its totient is φ = 1200121121118.

The previous prime is 1200121121107. The next prime is 1200121121237. The reversal of 1200121121119 is 9111211210021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200121121119 - 2⁹ = 1200121120607 is a prime.

It is a super-2 number, since 2×1200121121119² (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 1200121121119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200121131119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600060560559 + 600060560560.

It is an arithmetic number, because the mean of its divisors is an integer number (600060560560).

Almost surely, 2^{1200121121119} is an apocalyptic number.

1200121121119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200121121119 is an equidigital number, since it uses as much as digits as its factorization.

1200121121119 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 1200121121119 in words is "one trillion, two hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred nineteen".