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12122002020001 = 172378203396437
BaseRepresentation
bin1011000001100101111110…
…0111111101011010100001
31120220212000011101212102211
42300121133213331122201
53042101330004120001
641440434300442121
72360533340041636
oct260313747753241
946825004355384
1012122002020001
113953a04136205
1214393a9b49341
1369c13b5aa873
142dc9cab8818d
151604c3a37351
hexb065f9fd6a1

12122002020001 has 16 divisors (see below), whose sum is σ = 13393312136064. Its totient is φ = 10912735001344.

The previous prime is 12122002019977. The next prime is 12122002020013. The reversal of 12122002020001 is 10002020022121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12122002020001 - 29 = 12122002019489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122002020101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30379155 + ... + 30775591.

It is an arithmetic number, because the mean of its divisors is an integer number (837082008504).

Almost surely, 212122002020001 is an apocalyptic number.

It is an amenable number.

12122002020001 is a deficient number, since it is larger than the sum of its proper divisors (1271310116063).

12122002020001 is a wasteful number, since it uses less digits than its factorization.

12122002020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474680.

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

Adding to 12122002020001 its reverse (10002020022121), we get a palindrome (22124022042122).

The spelling of 12122002020001 in words is "twelve trillion, one hundred twenty-two billion, two million, twenty thousand, one".

Divisors: 1 17 23 391 78203 396437 1329451 1798669 6739429 9118051 30577373 155006867 31002562711 527043566087 713058942353 12122002020001