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12121220333032 = 238917024185861
BaseRepresentation
bin1011000001100011000100…
…0010000011110111101000
31120220202222200112001111121
42300120301002003313220
53042043224401124112
641440224534305024
72360505065600116
oct260306102036750
946822880461447
1012121220333032
113953642973218
1214392101b8174
1369c04566a2b5
142dc955028ab6
1516047a0cb407
hexb0631083de8

12121220333032 has 16 divisors (see below), whose sum is σ = 22982650913700. Its totient is φ = 5992513422720.

The previous prime is 12121220333009. The next prime is 12121220333069. The reversal of 12121220333032 is 23033302212121.

It can be written as a sum of positive squares in 2 ways, for example, as 12057325637956 + 63894695076 = 3472366^2 + 252774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12121220332988 and 12121220333006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8512092219 + ... + 8512093642.

Almost surely, 212121220333032 is an apocalyptic number.

It is an amenable number.

12121220333032 is a deficient number, since it is larger than the sum of its proper divisors (10861430580668).

12121220333032 is a wasteful number, since it uses less digits than its factorization.

12121220333032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17024185956 (or 17024185952 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12121220333032 its reverse (23033302212121), we get a palindrome (35154522545153).

The spelling of 12121220333032 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty million, three hundred thirty-three thousand, thirty-two".

Divisors: 1 2 4 8 89 178 356 712 17024185861 34048371722 68096743444 136193486888 1515152541629 3030305083258 6060610166516 12121220333032