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210221102100012 = 22327649136335977
BaseRepresentation
bin101111110011000111101010…
…000111010110111000101100
31000120022221102001110202010220
4233303013222013112320230
5210023230304114200022
62023034124023531340
762164654611553443
oct5763075207267054
91016287361422126
10210221102100012
1160a8a2a5756643
121b6b23118b9b50
13903b9c3548983
1439caa81643d5a
1519484eed2085c
hexbf31ea1d6e2c

210221102100012 has 24 divisors (see below), whose sum is σ = 490516159724976. Its totient is φ = 70073664296448.

The previous prime is 210221102099971. The next prime is 210221102100017. The reversal of 210221102100012 is 210001201122012.

Adding to 210221102100012 its reverse (210001201122012), we get a palindrome (420222303222024).

It is a junction number, because it is equal to n+sod(n) for n = 210221102099964 and 210221102100000.

It is not an unprimeable number, because it can be changed into a prime (210221102100017) 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, 30010968 + ... + 36346944.

It is an arithmetic number, because the mean of its divisors is an integer number (20438173321874).

Almost surely, 2210221102100012 is an apocalyptic number.

It is an amenable number.

210221102100012 is an abundant number, since it is smaller than the sum of its proper divisors (280295057624964).

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

210221102100012 is a wasteful number, since it uses less digits than its factorization.

210221102100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100897 (or 9100895 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The spelling of 210221102100012 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred two million, one hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 2764913 5529826 6335977 8294739 11059652 12671954 16589478 19007931 25343908 33178956 38015862 76031724 17518425175001 35036850350002 52555275525003 70073700700004 105110551050006 210221102100012