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2022122121 = 32923242783
BaseRepresentation
bin111100010000111…
…0010001010001001
312012220222110001220
41320201302022021
513120130401441
6532353032253
7101052516525
oct17041621211
95186873056
102022122121
11948487308
12485255689
13262c21686
141527b6d85
15bc7d2466
hex78872289

2022122121 has 8 divisors (see below), whose sum is σ = 2789134080. Its totient is φ = 1301595792.

The previous prime is 2022122107. The next prime is 2022122131. The reversal of 2022122121 is 1212212202.

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

It is not a de Polignac number, because 2022122121 - 26 = 2022122057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2022122121.

It is not an unprimeable number, because it can be changed into a prime (2022122131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11621305 + ... + 11621478.

It is an arithmetic number, because the mean of its divisors is an integer number (348641760).

Almost surely, 22022122121 is an apocalyptic number.

It is an amenable number.

2022122121 is a deficient number, since it is larger than the sum of its proper divisors (767011959).

2022122121 is a wasteful number, since it uses less digits than its factorization.

2022122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23242815.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2022122121 is about 44968.0121975611. The cubic root of 2022122121 is about 1264.5493811785.

Adding to 2022122121 its reverse (1212212202), we get a palindrome (3234334323).

The spelling of 2022122121 in words is "two billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 3 29 87 23242783 69728349 674040707 2022122121