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12210122140 = 2251263748311
BaseRepresentation
bin10110101111100011…
…11010110110011100
31011111221111110201221
423113301322312130
5200001242402030
65335333143124
7611402216506
oct132761726634
934457443657
1012210122140
1151a6328537
12244918aaa4
1311c7854158
1483b8b6d76
154b6e28e7a
hex2d7c7ad9c

12210122140 has 24 divisors (see below), whose sum is σ = 25643816352. Its totient is φ = 4883561280.

The previous prime is 12210122129. The next prime is 12210122149. The reversal of 12210122140 is 4122101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210122149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228585 + ... + 276895.

It is an arithmetic number, because the mean of its divisors is an integer number (1068492348).

Almost surely, 212210122140 is an apocalyptic number.

12210122140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210122140 is an abundant number, since it is smaller than the sum of its proper divisors (13433694212).

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

12210122140 is a wasteful number, since it uses less digits than its factorization.

12210122140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60957 (or 60955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12210122140 its reverse (4122101221), we get a palindrome (16332223361).

The spelling of 12210122140 in words is "twelve billion, two hundred ten million, one hundred twenty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 12637 25274 48311 50548 63185 96622 126370 193244 241555 252740 483110 966220 610506107 1221012214 2442024428 3052530535 6105061070 12210122140