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2012212000021 = 107991195915581
BaseRepresentation
bin11101010010000001001…
…011100111010100010101
321010100212111212201200011
4131102001023213110111
5230432002233000041
64140221502320221
7265243326535456
oct35220113472425
97110774781604
102012212000021
11706413241193
12285b91889071
1311799b5c51a2
146d56a6d512d
1537520177e81
hex1d4812e7515

2012212000021 has 8 divisors (see below), whose sum is σ = 2012695776000. Its totient is φ = 2011728300720.

The previous prime is 2012212000009. The next prime is 2012212000031. The reversal of 2012212000021 is 1200002122102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2012212000021 - 219 = 2012211475733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012211999965 and 2012212000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012212000031) 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, 129137451 + ... + 129153031.

It is an arithmetic number, because the mean of its divisors is an integer number (251586972000).

Almost surely, 22012212000021 is an apocalyptic number.

It is an amenable number.

2012212000021 is a deficient number, since it is larger than the sum of its proper divisors (483775979).

2012212000021 is a wasteful number, since it uses less digits than its factorization.

2012212000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38339.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2012212000021 its reverse (1200002122102), we get a palindrome (3212214122123).

The spelling of 2012212000021 in words is "two trillion, twelve billion, two hundred twelve million, twenty-one", and thus it is an aban number.

Divisors: 1 10799 11959 15581 129145241 168259219 186333179 2012212000021