1202212111 has 2 divisors, whose sum is σ = 1202212112. Its totient is φ = 1202212110.

The previous prime is 1202212087. The next prime is 1202212157. The reversal of 1202212111 is 1112122021.

It is a weak prime.

It is an emirp because it is prime and its reverse (1112122021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202212111 - 2⁹ = 1202211599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202212091 and 1202212100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202212211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601106055 + 601106056.

It is an arithmetic number, because the mean of its divisors is an integer number (601106056).

Almost surely, 2^1202212111 is an apocalyptic number.

1202212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202212111 is an equidigital number, since it uses as much as digits as its factorization.

1202212111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1202212111 is about 34672.9305222388. The cubic root of 1202212111 is about 1063.3111457740.

Adding to 1202212111 its reverse (1112122021), we get a palindrome (2314334132).

The spelling of 1202212111 in words is "one billion, two hundred two million, two hundred twelve thousand, one hundred eleven".