1202212091 has 8 divisors (see below), whose sum is σ = 1225536480. Its totient is φ = 1178911552.

The previous prime is 1202212087. The next prime is 1202212111. The reversal of 1202212091 is 1902122021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202212091 - 2² = 1202212087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202212031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122090 + ... + 131568.

It is an arithmetic number, because the mean of its divisors is an integer number (153192060).

Almost surely, 2^1202212091 is an apocalyptic number.

1202212091 is a deficient number, since it is larger than the sum of its proper divisors (23324389).

1202212091 is an equidigital number, since it uses as much as digits as its factorization.

1202212091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11925.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1202212091 is about 34672.9302338294. The cubic root of 1202212091 is about 1063.3111398776.

The spelling of 1202212091 in words is "one billion, two hundred two million, two hundred twelve thousand, ninety-one".