1211002097 has 8 divisors (see below), whose sum is σ = 1258286400. Its totient is φ = 1164086224.

The previous prime is 1211002043. The next prime is 1211002159. The reversal of 1211002097 is 7902001121.

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 1211002097 - 2²² = 1206807793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211002007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85397 + ... + 98562.

It is an arithmetic number, because the mean of its divisors is an integer number (157285800).

Almost surely, 2^1211002097 is an apocalyptic number.

It is an amenable number.

1211002097 is a deficient number, since it is larger than the sum of its proper divisors (47284303).

1211002097 is a wasteful number, since it uses less digits than its factorization.

1211002097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184215.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1211002097 is about 34799.4554124055. The cubic root of 1211002097 is about 1065.8963255141.

The spelling of 1211002097 in words is "one billion, two hundred eleven million, two thousand, ninety-seven".