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2122212004 = 221165997309
BaseRepresentation
bin111111001111110…
…0110001010100100
312110220022112120121
41332133212022210
513321241241004
6550330211324
7103406335003
oct17637461244
95426275517
102122212004
11999a2a320
124b2883b44
1327a897063
14161bccc3a
15c64a3854
hex7e7e62a4

2122212004 has 24 divisors (see below), whose sum is σ = 4052664000. Its totient is φ = 964363680.

The previous prime is 2122211989. The next prime is 2122212013. The reversal of 2122212004 is 4002122212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286702 + ... + 294010.

It is an arithmetic number, because the mean of its divisors is an integer number (168861000).

Almost surely, 22122212004 is an apocalyptic number.

It is an amenable number.

2122212004 is a deficient number, since it is larger than the sum of its proper divisors (1930451996).

2122212004 is a wasteful number, since it uses less digits than its factorization.

2122212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13923 (or 13921 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2122212004 is about 46067.4722987923. The cubic root of 2122212004 is about 1285.0782964904.

Adding to 2122212004 its reverse (4002122212), we get a palindrome (6124334216).

The spelling of 2122212004 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, four".

Divisors: 1 2 4 11 22 44 6599 7309 13198 14618 26396 29236 72589 80399 145178 160798 290356 321596 48232091 96464182 192928364 530553001 1061106002 2122212004