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12101000202 = 2321914677537
BaseRepresentation
bin10110100010100011…
…01001110000001010
31011020100011111120200
423101101221300022
5144240324001302
65320434233030
7605605542654
oct132121516012
934210144520
1012101000202
11514a776615
122418725776
1311ab068665
1482b1cd6d4
154ac57181c
hex2d1469c0a

12101000202 has 48 divisors (see below), whose sum is σ = 26416046592. Its totient is φ = 4003424640.

The previous prime is 12101000147. The next prime is 12101000207. The reversal of 12101000202 is 20200010121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12101000207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1601778 + ... + 1609314.

It is an arithmetic number, because the mean of its divisors is an integer number (550334304).

Almost surely, 212101000202 is an apocalyptic number.

12101000202 is an abundant number, since it is smaller than the sum of its proper divisors (14315046390).

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

12101000202 is a wasteful number, since it uses less digits than its factorization.

12101000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203 (or 8200 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12101000202 its reverse (20200010121), we get a palindrome (32301010323).

The spelling of 12101000202 in words is "twelve billion, one hundred one million, two hundred two", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 191 382 467 573 934 1146 1401 1719 2802 3438 4203 7537 8406 15074 22611 45222 67833 89197 135666 178394 267591 535182 802773 1439567 1605546 2879134 3519779 4318701 7039558 8637402 10559337 12956103 21118674 25912206 31678011 63356022 672277789 1344555578 2016833367 4033666734 6050500101 12101000202