1202220212909 has 2 divisors, whose sum is σ = 1202220212910. Its totient is φ = 1202220212908.

The previous prime is 1202220212891. The next prime is 1202220212911. The reversal of 1202220212909 is 9092120222021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199141072809 + 3079140100 = 1095053^2 + 55490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202220212909 is a prime.

It is a super-2 number, since 2×1202220212909² (a number of 25 digits) contains 22 as substring.

Together with 1202220212911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202220212939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601110106454 + 601110106455.

It is an arithmetic number, because the mean of its divisors is an integer number (601110106455).

Almost surely, 2^{1202220212909} is an apocalyptic number.

It is an amenable number.

1202220212909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202220212909 is an equidigital number, since it uses as much as digits as its factorization.

1202220212909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 1202220212909 in words is "one trillion, two hundred two billion, two hundred twenty million, two hundred twelve thousand, nine hundred nine".