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21120002202 = 23132924173863
BaseRepresentation
bin10011101010110110…
…011010100010011010
32000111220000021102210
4103222312122202122
5321223210032302
613411414535550
71345242025305
oct235266324232
960456007383
1021120002202
118a58766282
1241150675b6
131cb773ca30
141044d4db3c
1583925366c
hex4ead9a89a

21120002202 has 64 divisors (see below), whose sum is σ = 47089486080. Its totient is φ = 6270157824.

The previous prime is 21120002191. The next prime is 21120002213. The reversal of 21120002202 is 20220002112.

It is an interprime number because it is at equal distance from previous prime (21120002191) and next prime (21120002213).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5465323 + ... + 5469185.

It is an arithmetic number, because the mean of its divisors is an integer number (735773220).

Almost surely, 221120002202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21120002202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23544743040).

21120002202 is an abundant number, since it is smaller than the sum of its proper divisors (25969483878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21120002202 is a wasteful number, since it uses less digits than its factorization.

21120002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21120002202 its reverse (20220002112), we get a palindrome (41340004314).

The spelling of 21120002202 in words is "twenty-one billion, one hundred twenty million, two thousand, two hundred two".

Divisors: 1 2 3 6 13 26 29 39 58 78 87 174 377 754 1131 2262 2417 3863 4834 7251 7726 11589 14502 23178 31421 50219 62842 70093 94263 100438 112027 140186 150657 188526 210279 224054 301314 336081 420558 672162 911209 1456351 1822418 2733627 2912702 4369053 5467254 8738106 9336871 18673742 28010613 56021226 121379323 242758646 270769259 364137969 541538518 728275938 812307777 1624615554 3520000367 7040000734 10560001101 21120002202