1221133302097 has 8 divisors (see below), whose sum is σ = 1221671705576. Its totient is φ = 1220594994432.

The previous prime is 1221133302061. The next prime is 1221133302107. The reversal of 1221133302097 is 7902033311221.

It can be written as a sum of positive squares in 4 ways, for example, as 585165331521 + 635967970576 = 764961^2 + 797476^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221133302097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221133302047) 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, 37560553 + ... + 37593049.

It is an arithmetic number, because the mean of its divisors is an integer number (152708963197).

Almost surely, 2^{1221133302097} is an apocalyptic number.

It is an amenable number.

1221133302097 is a deficient number, since it is larger than the sum of its proper divisors (538403479).

1221133302097 is a wasteful number, since it uses less digits than its factorization.

1221133302097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47907.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 1221133302097 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-three million, three hundred two thousand, ninety-seven".