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2022013121 = 16712107863
BaseRepresentation
bin111100010000101…
…0111100011000001
312012220202220112212
41320201113203001
513120113404441
6532350431505
7101051553662
oct17041274301
95186686485
102022013121
11948412427
12485202595
13262bb3b8b
14152789369
15bc7aeeeb
hex788578c1

2022013121 has 4 divisors (see below), whose sum is σ = 2034121152. Its totient is φ = 2009905092.

The previous prime is 2022013109. The next prime is 2022013127. The reversal of 2022013121 is 1213102202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2022013121 - 214 = 2021996737 is a prime.

It is a super-2 number, since 2×20220131212 = 8177074122992321282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022013096 and 2022013105.

It is not an unprimeable number, because it can be changed into a prime (2022013127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6053765 + ... + 6054098.

It is an arithmetic number, because the mean of its divisors is an integer number (508530288).

Almost surely, 22022013121 is an apocalyptic number.

It is an amenable number.

2022013121 is a deficient number, since it is larger than the sum of its proper divisors (12108031).

2022013121 is a wasteful number, since it uses less digits than its factorization.

2022013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12108030.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2022013121 is about 44966.8002085983. The cubic root of 2022013121 is about 1264.5266594451.

Adding to 2022013121 its reverse (1213102202), we get a palindrome (3235115323).

The spelling of 2022013121 in words is "two billion, twenty-two million, thirteen thousand, one hundred twenty-one".

Divisors: 1 167 12107863 2022013121