121012010219 has 2 divisors, whose sum is σ = 121012010220. Its totient is φ = 121012010218.

The previous prime is 121012010201. The next prime is 121012010243. The reversal of 121012010219 is 912010210121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121012010219 - 2²⁴ = 120995233003 is a prime.

It is a super-2 number, since 2×121012010219² (a number of 23 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 121012010219.

It is not a weakly prime, because it can be changed into another prime (121012010419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506005109 + 60506005110.

It is an arithmetic number, because the mean of its divisors is an integer number (60506005110).

Almost surely, 2^121012010219 is an apocalyptic number.

121012010219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012010219 is an equidigital number, since it uses as much as digits as its factorization.

121012010219 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 20.

The spelling of 121012010219 in words is "one hundred twenty-one billion, twelve million, ten thousand, two hundred nineteen".