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2222021011 = 7911348443
BaseRepresentation
bin1000010001110001…
…0101100110010011
312201212010100210111
42010130111212103
514022314133021
61004253342151
7106030603240
oct20434254623
95655110714
102222021011
11a40300301
12520197957
13295471942
141711705c7
15d011b8e1
hex84715993

2222021011 has 8 divisors (see below), whose sum is σ = 2542247424. Its totient is φ = 1902493320.

The previous prime is 2222020993. The next prime is 2222021017. The reversal of 2222021011 is 1101202222.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-2222021011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222020982 and 2222021000.

It is not an unprimeable number, because it can be changed into a prime (2222021017) 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, 167845 + ... + 180598.

It is an arithmetic number, because the mean of its divisors is an integer number (317780928).

Almost surely, 22222021011 is an apocalyptic number.

2222021011 is a deficient number, since it is larger than the sum of its proper divisors (320226413).

2222021011 is an equidigital number, since it uses as much as digits as its factorization.

2222021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349361.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2222021011 is about 47138.3178634961. The cubic root of 2222021011 is about 1304.9164934357.

Adding to 2222021011 its reverse (1101202222), we get a palindrome (3323223233).

The spelling of 2222021011 in words is "two billion, two hundred twenty-two million, twenty-one thousand, eleven".

Divisors: 1 7 911 6377 348443 2439101 317431573 2222021011