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2212012141 = 8924854069
BaseRepresentation
bin1000001111011000…
…1010000001101101
312201011021212012121
42003312022001231
514012233342031
61003255032541
7105546535663
oct20366120155
95634255177
102212012141
11a35694509
1251896b751
13293379031
1416dac6c33
15ce2e1011
hex83d8a06d

2212012141 has 4 divisors (see below), whose sum is σ = 2236866300. Its totient is φ = 2187157984.

The previous prime is 2212012139. The next prime is 2212012147. The reversal of 2212012141 is 1412102122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1565784900 + 646227241 = 39570^2 + 25421^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212012141 - 21 = 2212012139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212012147) 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, 12426946 + ... + 12427123.

It is an arithmetic number, because the mean of its divisors is an integer number (559216575).

Almost surely, 22212012141 is an apocalyptic number.

It is an amenable number.

2212012141 is a deficient number, since it is larger than the sum of its proper divisors (24854159).

2212012141 is an equidigital number, since it uses as much as digits as its factorization.

2212012141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24854158.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2212012141 is about 47032.0331370014. The cubic root of 2212012141 is about 1302.9542559107.

Adding to 2212012141 its reverse (1412102122), we get a palindrome (3624114263).

The spelling of 2212012141 in words is "two billion, two hundred twelve million, twelve thousand, one hundred forty-one".

Divisors: 1 89 24854069 2212012141