102022205 has 4 divisors (see below), whose sum is σ = 122426652. Its totient is φ = 81617760.

The previous prime is 102022183. The next prime is 102022223. The reversal of 102022205 is 502220201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502220201 = 7 ⋅71745743.

It can be written as a sum of positive squares in 2 ways, for example, as 65383396 + 36638809 = 8086^2 + 6053^2 .

It is not a de Polignac number, because 102022205 - 2¹⁴ = 102005821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102022205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10202216 + ... + 10202225.

It is an arithmetic number, because the mean of its divisors is an integer number (30606663).

Almost surely, 2^102022205 is an apocalyptic number.

It is an amenable number.

102022205 is a deficient number, since it is larger than the sum of its proper divisors (20404447).

102022205 is an equidigital number, since it uses as much as digits as its factorization.

102022205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404446.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 102022205 is about 10100.6041898492. The cubic root of 102022205 is about 467.2667752969.

Adding to 102022205 its reverse (502220201), we get a palindrome (604242406).

The spelling of 102022205 in words is "one hundred two million, twenty-two thousand, two hundred five".