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3320312121220 = 2253117833003557
BaseRepresentation
bin110000010100010010000…
…001100100011110000100
3102202102022021000222021011
4300110102001210132010
5413344444400334340
611021155203532004
7461612300235643
oct60242201443604
912672267028234
103320312121220
1110701556a5316
124575b998a004
131b11478b9443
14b69bd96b35a
155b5802740ea
hex30512064784

3320312121220 has 48 divisors (see below), whose sum is σ = 7201619002368. Its totient is φ = 1284560830080.

The previous prime is 3320312121211. The next prime is 3320312121221. The reversal of 3320312121220 is 221212130233.

It is a super-2 number, since 2×33203121212202 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3320312121191 and 3320312121200.

It is not an unprimeable number, because it can be changed into a prime (3320312121221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396319 + ... + 2607238.

It is an arithmetic number, because the mean of its divisors is an integer number (150033729216).

Almost surely, 23320312121220 is an apocalyptic number.

It is an amenable number.

3320312121220 is an abundant number, since it is smaller than the sum of its proper divisors (3881306881148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3320312121220 is a wasteful number, since it uses less digits than its factorization.

3320312121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005380 (or 3005378 counting only the distinct ones).

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

Adding to 3320312121220 its reverse (221212130233), we get a palindrome (3541524251453).

The spelling of 3320312121220 in words is "three trillion, three hundred twenty billion, three hundred twelve million, one hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 1783 3566 7132 8915 17830 35660 55273 110546 221092 276365 552730 1105460 3003557 6007114 12014228 15017785 30035570 60071140 93110267 186220534 372441068 465551335 931102670 1862205340 5355342131 10710684262 21421368524 26776710655 53553421310 107106842620 166015606061 332031212122 664062424244 830078030305 1660156060610 3320312121220