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210012202000021 = 319887685201493
BaseRepresentation
bin101111110000000101000110…
…101100101101111010010101
31000112120222012110002010200111
4233300011012230231322111
5210011314442203000041
62022354135041443021
762143611100163161
oct5760050654557225
91015528173063614
10210012202000021
1160a09747027603
121b679931640471
1390250b1386655
1439c0905513ca1
151942d75354981
hexbf0146b2de95

210012202000021 has 8 divisors (see below), whose sum is σ = 216808715925504. Its totient is φ = 203217058497360.

The previous prime is 210012201999961. The next prime is 210012202000039. The reversal of 210012202000021 is 120000202210012.

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 a de Polignac number, because none of the positive numbers 2k-210012202000021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210012201999965 and 210012202000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012202000061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342294250 + ... + 342907243.

It is an arithmetic number, because the mean of its divisors is an integer number (27101089490688).

Almost surely, 2210012202000021 is an apocalyptic number.

It is an amenable number.

210012202000021 is a deficient number, since it is larger than the sum of its proper divisors (6796513925483).

210012202000021 is an equidigital number, since it uses as much as digits as its factorization.

210012202000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685211411.

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

Adding to 210012202000021 its reverse (120000202210012), we get a palindrome (330012404210033).

The spelling of 210012202000021 in words is "two hundred ten trillion, twelve billion, two hundred two million, twenty-one", and thus it is an aban number.

Divisors: 1 31 9887 306497 685201493 21241246283 6774587161291 210012202000021