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12122011002021 = 330831713105571
BaseRepresentation
bin1011000001100110000000…
…1010001110010010100101
31120220212000210022012110020
42300121200022032102211
53042101334304031041
641440435221145353
72360533506301404
oct260314012162245
946825023265406
1012122011002021
113953a09210568
1214393b0b5b259
1369c140403c7b
142dc9cc04563b
151604c470d866
hexb066028e4a5

12122011002021 has 8 divisors (see below), whose sum is σ = 16162734991584. Its totient is φ = 8081313840240.

The previous prime is 12122011001957. The next prime is 12122011002029. The reversal of 12122011002021 is 12020011022121.

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

It is not a de Polignac number, because 12122011002021 - 26 = 12122011001957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122011002029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5627835 + ... + 7477736.

It is an arithmetic number, because the mean of its divisors is an integer number (2020341873948).

Almost surely, 212122011002021 is an apocalyptic number.

It is an amenable number.

12122011002021 is a deficient number, since it is larger than the sum of its proper divisors (4040723989563).

12122011002021 is a wasteful number, since it uses less digits than its factorization.

12122011002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13413891.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122011002021 its reverse (12020011022121), we get a palindrome (24142022024142).

The spelling of 12122011002021 in words is "twelve trillion, one hundred twenty-two billion, eleven million, two thousand, twenty-one".

Divisors: 1 3 308317 924951 13105571 39316713 4040670334007 12122011002021