1201211011219 has 2 divisors, whose sum is σ = 1201211011220. Its totient is φ = 1201211011218.

The previous prime is 1201211011177. The next prime is 1201211011243. The reversal of 1201211011219 is 9121101121021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201211011219 is a prime.

It is a super-2 number, since 2×1201211011219² (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 1201211011219.

It is not a weakly prime, because it can be changed into another prime (1201211011519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600605505609 + 600605505610.

It is an arithmetic number, because the mean of its divisors is an integer number (600605505610).

Almost surely, 2^{1201211011219} is an apocalyptic number.

1201211011219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201211011219 is an equidigital number, since it uses as much as digits as its factorization.

1201211011219 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 1201211011219 in words is "one trillion, two hundred one billion, two hundred eleven million, eleven thousand, two hundred nineteen".