109221293965 has 16 divisors (see below), whose sum is σ = 149832034560. Its totient is φ = 74873185920.

The previous prime is 109221293963. The next prime is 109221293971. The reversal of 109221293965 is 569392122901.

It is not a de Polignac number, because 109221293965 - 2¹ = 109221293963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109221293963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321520 + ... + 567289.

It is an arithmetic number, because the mean of its divisors is an integer number (9364502160).

Almost surely, 2^109221293965 is an apocalyptic number.

It is an amenable number.

109221293965 is a deficient number, since it is larger than the sum of its proper divisors (40610740595).

109221293965 is an equidigital number, since it uses as much as digits as its factorization.

109221293965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892332.

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 109221293965 in words is "one hundred nine billion, two hundred twenty-one million, two hundred ninety-three thousand, nine hundred sixty-five".