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212002110220 = 22516187654853
BaseRepresentation
bin1100010101110001001…
…1110111101100001100
3202021012210101001112011
43011130103313230030
511433140020011340
6241220432551004
721213416126665
oct3053423675414
9667183331464
10212002110220
1181a0073425a
12351070b2464
1316cb7a42344
14a3920cc36c
1557abeb00ea
hex315c4f7b0c

212002110220 has 24 divisors (see below), whose sum is σ = 445232615184. Its totient is φ = 84795475776.

The previous prime is 212002110149. The next prime is 212002110289. The reversal of 212002110220 is 22011200212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212002110220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3687 + ... + 651166.

It is an arithmetic number, because the mean of its divisors is an integer number (18551358966).

Almost surely, 2212002110220 is an apocalyptic number.

212002110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002110220 is an abundant number, since it is smaller than the sum of its proper divisors (233230504964).

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

212002110220 is a wasteful number, since it uses less digits than its factorization.

212002110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671049 (or 671047 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212002110220 its reverse (22011200212), we get a palindrome (234013310432).

The spelling of 212002110220 in words is "two hundred twelve billion, two million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 16187 32374 64748 80935 161870 323740 654853 1309706 2619412 3274265 6548530 13097060 10600105511 21200211022 42400422044 53000527555 106001055110 212002110220