102220993 has 16 divisors (see below), whose sum is σ = 122618880. Its totient is φ = 83316816.

The previous prime is 102220967. The next prime is 102220997. The reversal of 102220993 is 399022201.

It is a cyclic number.

It is not a de Polignac number, because 102220993 - 2¹³ = 102212801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102220997) 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, 27046 + ... + 30592.

It is an arithmetic number, because the mean of its divisors is an integer number (7663680).

Almost surely, 2^102220993 is an apocalyptic number.

It is an amenable number.

102220993 is a deficient number, since it is larger than the sum of its proper divisors (20397887).

102220993 is a wasteful number, since it uses less digits than its factorization.

102220993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 102220993 is about 10110.4398025012. The cubic root of 102220993 is about 467.5700647083.

The spelling of 102220993 in words is "one hundred two million, two hundred twenty thousand, nine hundred ninety-three".