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1220022030331 = 133791352318311
BaseRepresentation
bin10001110000001110111…
…110101100111111111011
311022122002102200122011101
4101300032332230333323
5124442101114432311
62332245334112231
7154100166103216
oct21601676547773
94278072618141
101220022030331
114304546a28a5
12178546aab677
138b080706c30
144309970677d
1521b07858ec1
hex11c0efacffb

1220022030331 has 16 divisors (see below), whose sum is σ = 1317505916160. Its totient is φ = 1123058351520.

The previous prime is 1220022030299. The next prime is 1220022030341. The reversal of 1220022030331 is 1330302200221.

It is a cyclic number.

It is not a de Polignac number, because 1220022030331 - 25 = 1220022030299 is a prime.

It is a super-2 number, since 2×12200220303312 (a number of 25 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 = 1220022030299 and 1220022030308.

It is not an unprimeable number, because it can be changed into a prime (1220022030341) 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, 66618666 + ... + 66636976.

It is an arithmetic number, because the mean of its divisors is an integer number (82344119760).

Almost surely, 21220022030331 is an apocalyptic number.

1220022030331 is a deficient number, since it is larger than the sum of its proper divisors (97483885829).

1220022030331 is a wasteful number, since it uses less digits than its factorization.

1220022030331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32226.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1220022030331 its reverse (1330302200221), we get a palindrome (2550324230552).

The spelling of 1220022030331 in words is "one trillion, two hundred twenty billion, twenty-two million, thirty thousand, three hundred thirty-one".

Divisors: 1 13 379 4927 13523 18311 175799 238043 5125217 6939869 66627821 90218297 247619653 3219055489 93847848487 1220022030331