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12121123202 = 230759932957
BaseRepresentation
bin10110100100111100…
…11010100110000010
31011021202000212010222
423102132122212002
5144311001420302
65322433423042
7606241563416
oct132236324602
934252025128
1012121123202
1151600702a1
12242340aa82
1311b2292a66
1482db4ad46
154ae1e8da2
hex2d279a982

12121123202 has 16 divisors (see below), whose sum is σ = 18271915200. Its totient is φ = 6030552528.

The previous prime is 12121123193. The next prime is 12121123213. The reversal of 12121123202 is 20232112121.

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, 351308 + ... + 384264.

It is an arithmetic number, because the mean of its divisors is an integer number (1141994700).

Almost surely, 212121123202 is an apocalyptic number.

12121123202 is a deficient number, since it is larger than the sum of its proper divisors (6150791998).

12121123202 is a wasteful number, since it uses less digits than its factorization.

12121123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33865.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12121123202 its reverse (20232112121), we get a palindrome (32353235323).

The spelling of 12121123202 in words is "twelve billion, one hundred twenty-one million, one hundred twenty-three thousand, two hundred two".

Divisors: 1 2 307 599 614 1198 32957 65914 183893 367786 10117799 19741243 20235598 39482486 6060561601 12121123202