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12101100201212 = 2211225002273143
BaseRepresentation
bin1011000000011000000111…
…0001110110010011111100
31120211212001110221110101012
42300012001301312103330
53041231023122414322
641423100234134352
72356163354362511
oct260060161662374
946755043843335
1012101100201212
113946058652400
121435335b813b8
1369a18a120759
142db9a6bd1308
1515eb9da30ae2
hexb0181c764fc

12101100201212 has 18 divisors (see below), whose sum is σ = 23277116297064. Its totient is φ = 5500500091240.

The previous prime is 12101100201163. The next prime is 12101100201241. The reversal of 12101100201212 is 21210200110121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12501136088 + ... + 12501137055.

Almost surely, 212101100201212 is an apocalyptic number.

It is an amenable number.

12101100201212 is a deficient number, since it is larger than the sum of its proper divisors (11176016095852).

12101100201212 is a wasteful number, since it uses less digits than its factorization.

12101100201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25002273169 (or 25002273156 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101100201212 its reverse (21210200110121), we get a palindrome (33311300311333).

The spelling of 12101100201212 in words is "twelve trillion, one hundred one billion, one hundred million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 121 242 484 25002273143 50004546286 100009092572 275025004573 550050009146 1100100018292 3025275050303 6050550100606 12101100201212