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3221110113220 = 225161055505661
BaseRepresentation
bin101110110111111001000…
…111111100001111000100
3102101221020200221211020201
4232313321013330033010
5410233313142110340
610503431344340244
7451501053131506
oct56677107741704
912357220854221
103221110113220
11103207975943a
12440333314684
131a499850891c
14b1c8c8b1d76
1558bc611679a
hex2edf91fc3c4

3221110113220 has 12 divisors (see below), whose sum is σ = 6764331237804. Its totient is φ = 1288444045280.

The previous prime is 3221110113163. The next prime is 3221110113227. The reversal of 3221110113220 is 223110111223.

It can be written as a sum of positive squares in 2 ways, for example, as 2121514597764 + 1099595515456 = 1456542^2 + 1048616^2 .

It is a super-2 number, since 2×32211101132202 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3221110113227) 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, 80527752811 + ... + 80527752850.

It is an arithmetic number, because the mean of its divisors is an integer number (563694269817).

Almost surely, 23221110113220 is an apocalyptic number.

It is an amenable number.

3221110113220 is an abundant number, since it is smaller than the sum of its proper divisors (3543221124584).

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

3221110113220 is a wasteful number, since it uses less digits than its factorization.

3221110113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161055505670 (or 161055505668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 3221110113220 its reverse (223110111223), we get a palindrome (3444220224443).

The spelling of 3221110113220 in words is "three trillion, two hundred twenty-one billion, one hundred ten million, one hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 161055505661 322111011322 644222022644 805277528305 1610555056610 3221110113220