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212010021201 = 31137191909091
BaseRepresentation
bin1100010101110011001…
…0000011000101010001
3202021020100020222100110
43011130302003011101
511433144031134301
6241221314311533
721213543306036
oct3053462030521
9667210228313
10212010021201
1181a05147960
12351098885a9
1316cb95820b4
14a39318b38d
1557aca240d6
hex315cc83151

212010021201 has 32 divisors (see below), whose sum is σ = 318371291136. Its totient is φ = 124363512000.

The previous prime is 212010021191. The next prime is 212010021217. The reversal of 212010021201 is 102120010212.

It is not a de Polignac number, because 212010021201 - 217 = 212009890129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212010021701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221335 + ... + 687756.

It is an arithmetic number, because the mean of its divisors is an integer number (9949102848).

Almost surely, 2212010021201 is an apocalyptic number.

It is an amenable number.

212010021201 is a deficient number, since it is larger than the sum of its proper divisors (106361269935).

212010021201 is a wasteful number, since it uses less digits than its factorization.

212010021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909333.

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

Adding to 212010021201 its reverse (102120010212), we get a palindrome (314130031413).

It can be divided in two parts, 2120100 and 21201, that multiplied together give a square (44948240100 = 2120102).

The spelling of 212010021201 in words is "two hundred twelve billion, ten million, twenty-one thousand, two hundred one".

Divisors: 1 3 11 33 37 111 191 407 573 1221 2101 6303 7067 21201 77737 233211 909091 2727273 10000001 30000003 33636367 100909101 173636381 370000037 520909143 1110000111 1910000191 5730000573 6424546097 19273638291 70670007067 212010021201