1221010093 has 8 divisors (see below), whose sum is σ = 1228492800. Its totient is φ = 1213539120.

The previous prime is 1221010081. The next prime is 1221010097. The reversal of 1221010093 is 3900101221.

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-1221010093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1221010093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221010097) 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, 293796 + ... + 297922.

It is an arithmetic number, because the mean of its divisors is an integer number (153561600).

Almost surely, 2^1221010093 is an apocalyptic number.

It is an amenable number.

1221010093 is a deficient number, since it is larger than the sum of its proper divisors (7482707).

1221010093 is a wasteful number, since it uses less digits than its factorization.

1221010093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1221010093 is about 34942.9548407115. The cubic root of 1221010093 is about 1068.8245434458.

The spelling of 1221010093 in words is "one billion, two hundred twenty-one million, ten thousand, ninety-three".