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210201012012 = 22353309328589
BaseRepresentation
bin1100001111000011110…
…1001110011100101100
3202002120021021210021010
43003300331032130230
511420442424341022
6240322013105220
721120656056545
oct3036075163454
9662507253233
10210201012012
1181166a9a542
12348a3a88210
1316a8b859464
14a260c0b4cc
155703cdb50c
hex30f0f4e72c

210201012012 has 24 divisors (see below), whose sum is σ = 490479721200. Its totient is φ = 70065476416.

The previous prime is 210201011963. The next prime is 210201012019. The reversal of 210201012012 is 210210102012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (210201012019) 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, 475414 + ... + 804002.

It is an arithmetic number, because the mean of its divisors is an integer number (20436655050).

Almost surely, 2210201012012 is an apocalyptic number.

It is an amenable number.

210201012012 is an abundant number, since it is smaller than the sum of its proper divisors (280278709188).

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

210201012012 is a wasteful number, since it uses less digits than its factorization.

210201012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381905 (or 381903 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210201012012 its reverse (210210102012), we get a palindrome (420411114024).

The spelling of 210201012012 in words is "two hundred ten billion, two hundred one million, twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 53309 106618 159927 213236 319854 328589 639708 657178 985767 1314356 1971534 3943068 17516751001 35033502002 52550253003 70067004004 105100506006 210201012012