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12033201222021 = 372339887624601
BaseRepresentation
bin1010111100011011001010…
…1011110011000110000101
31120121100210111000221020010
42233012302223303012011
53034122444003101041
641331550515300433
72351240641521120
oct257066253630605
946540714027203
1012033201222021
11391a285426371
1214241468aa719
136939590607a5
142d85a524d3b7
1515d027ad9a16
hexaf1b2af3185

12033201222021 has 32 divisors (see below), whose sum is σ = 19134047674368. Its totient is φ = 6576978038400.

The previous prime is 12033201222001. The next prime is 12033201222101. The reversal of 12033201222021 is 12022210233021.

It is not a de Polignac number, because 12033201222021 - 27 = 12033201221893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033201222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18953121 + ... + 19577721.

It is an arithmetic number, because the mean of its divisors is an integer number (597938989824).

Almost surely, 212033201222021 is an apocalyptic number.

It is an amenable number.

12033201222021 is a deficient number, since it is larger than the sum of its proper divisors (7100846452347).

12033201222021 is a wasteful number, since it uses less digits than its factorization.

12033201222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664521.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12033201222021 its reverse (12022210233021), we get a palindrome (24055411455042).

The spelling of 12033201222021 in words is "twelve trillion, thirty-three billion, two hundred one million, two hundred twenty-two thousand, twenty-one".

Divisors: 1 3 7 21 23 69 161 483 39887 119661 279209 624601 837627 917401 1873803 2752203 4372207 6421807 13116621 14365823 19265421 43097469 100560761 301682283 24913460087 74740380261 174394220609 523182661827 573009582001 1719028746003 4011067074007 12033201222021