Search a number
-
+
2022202221 = 31351851339
BaseRepresentation
bin111100010001000…
…0101101101101101
312012221010111221120
41320202011231231
513120140432341
6532354451153
7101053302204
oct17042055555
95187114846
102022202221
11948531506
12485293ab9
13262c4bc80
141527d823b
15bc7eb066
hex78885b6d

2022202221 has 8 divisors (see below), whose sum is σ = 2903675040. Its totient is φ = 1244432112.

The previous prime is 2022202211. The next prime is 2022202249. The reversal of 2022202221 is 1222022202.

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

It is not a de Polignac number, because 2022202221 - 27 = 2022202093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2022202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022202211) 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, 25925631 + ... + 25925708.

It is an arithmetic number, because the mean of its divisors is an integer number (362959380).

Almost surely, 22022202221 is an apocalyptic number.

It is an amenable number.

2022202221 is a deficient number, since it is larger than the sum of its proper divisors (881472819).

2022202221 is a wasteful number, since it uses less digits than its factorization.

2022202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51851355.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2022202221 is about 44968.9028218390. The cubic root of 2022202221 is about 1264.5660780052.

Adding to 2022202221 its reverse (1222022202), we get a palindrome (3244224423).

The spelling of 2022202221 in words is "two billion, twenty-two million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 3 13 39 51851339 155554017 674067407 2022202221