1200021212219 has 2 divisors, whose sum is σ = 1200021212220. Its totient is φ = 1200021212218.

The previous prime is 1200021212147. The next prime is 1200021212251. The reversal of 1200021212219 is 9122121200021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200021212219 - 2¹⁶ = 1200021146683 is a prime.

It is a super-2 number, since 2×1200021212219² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200021212194 and 1200021212203.

It is not a weakly prime, because it can be changed into another prime (1200021218219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600010606109 + 600010606110.

It is an arithmetic number, because the mean of its divisors is an integer number (600010606110).

Almost surely, 2^{1200021212219} is an apocalyptic number.

1200021212219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200021212219 is an equidigital number, since it uses as much as digits as its factorization.

1200021212219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1200021212219 in words is "one trillion, two hundred billion, twenty-one million, two hundred twelve thousand, two hundred nineteen".