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3002212331221 = 3899777899457
BaseRepresentation
bin101011101100000001110…
…011001010111011010101
3101122000020100011100100111
4223230001303022323111
5343142012324044341
610215110341243021
7426621422522245
oct53540163127325
911560210140314
103002212331221
11a5825a658994
12405a22a03471
1318a151c8b22c
14a5444a63b25
1553163a99681
hex2bb01ccaed5

3002212331221 has 8 divisors (see below), whose sum is σ = 3013011270360. Its totient is φ = 2991429193728.

The previous prime is 3002212331207. The next prime is 3002212331227. The reversal of 3002212331221 is 1221332122003.

It can be written as a sum of positive squares in 4 ways, for example, as 1121512770225 + 1880699560996 = 1059015^2 + 1371386^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3002212331221 - 217 = 3002212200149 is a prime.

It is a super-2 number, since 2×30022123312212 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3002212331192 and 3002212331201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3002212331227) 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, 3569676 + ... + 4329781.

It is an arithmetic number, because the mean of its divisors is an integer number (376626408795).

Almost surely, 23002212331221 is an apocalyptic number.

It is an amenable number.

3002212331221 is a deficient number, since it is larger than the sum of its proper divisors (10798939139).

3002212331221 is an equidigital number, since it uses as much as digits as its factorization.

3002212331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900823.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3002212331221 its reverse (1221332122003), we get a palindrome (4223544453224).

The spelling of 3002212331221 in words is "three trillion, two billion, two hundred twelve million, three hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 389 977 380053 7899457 3072888773 7717769489 3002212331221