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12020102210 = 251202010221
BaseRepresentation
bin10110011000111010…
…00011010001000010
31011000200221110101202
423030131003101002
5144104121232320
65304424301202
7603604116524
oct131435032102
934020843352
1012020102210
115109041776
1223b5611802
13119738261c
14820571a14
154a53e1b75
hex2cc743442

12020102210 has 8 divisors (see below), whose sum is σ = 21636183996. Its totient is φ = 4808040880.

The previous prime is 12020102191. The next prime is 12020102219. The reversal of 12020102210 is 1220102021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12012817609 + 7284601 = 109603^2 + 2699^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12020102191 and 12020102200.

It is not an unprimeable number, because it can be changed into a prime (12020102219) 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, 601005101 + ... + 601005120.

Almost surely, 212020102210 is an apocalyptic number.

12020102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020102210 is a deficient number, since it is larger than the sum of its proper divisors (9616081786).

12020102210 is a wasteful number, since it uses less digits than its factorization.

12020102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202010228.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12020102210 its reverse (1220102021), we get a palindrome (13240204231).

The spelling of 12020102210 in words is "twelve billion, twenty million, one hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 1202010221 2404020442 6010051105 12020102210