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12202032021 = 317323510659
BaseRepresentation
bin10110101110100110…
…00011101110010101
31011111101021110011220
423113103003232111
5144442210011041
65334443520553
7611243363244
oct132723035625
934441243156
1012202032021
1151a1802293
122446529159
1311c5c809ba
1483a7ac95b
154b637bd66
hex2d74c3b95

12202032021 has 8 divisors (see below), whose sum is σ = 16363419360. Its totient is φ = 8087666352.

The previous prime is 12202031969. The next prime is 12202032049. The reversal of 12202032021 is 12023020221.

It is a happy number.

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

It is not a de Polignac number, because 12202032021 - 231 = 10054548373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202032061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11754811 + ... + 11755848.

It is an arithmetic number, because the mean of its divisors is an integer number (2045427420).

Almost surely, 212202032021 is an apocalyptic number.

It is an amenable number.

12202032021 is a deficient number, since it is larger than the sum of its proper divisors (4161387339).

12202032021 is a wasteful number, since it uses less digits than its factorization.

12202032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23510835.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12202032021 its reverse (12023020221), we get a palindrome (24225052242).

The spelling of 12202032021 in words is "twelve billion, two hundred two million, thirty-two thousand, twenty-one".

Divisors: 1 3 173 519 23510659 70531977 4067344007 12202032021