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212001000222020 = 22567523156984287
BaseRepresentation
bin110000001101000001010100…
…010011110110110101000100
31000210122002122012210201000212
4300031001110103312311010
5210241411022024101040
62030515525345454552
762440365263144312
oct6015012423666504
91023562565721025
10212001000222020
1161606134852819
121b93b26a041458
13913a7bac659c9
143a4cc903ab0b2
151979974bd6d65
hexc0d0544f6d44

212001000222020 has 24 divisors (see below), whose sum is σ = 445208696642304. Its totient is φ = 84799143674336.

The previous prime is 212001000222017. The next prime is 212001000222047. The reversal of 212001000222020 is 20222000100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001000221986 and 212001000222004.

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, 77141684 + ... + 79842603.

It is an arithmetic number, because the mean of its divisors is an integer number (18550362360096).

Almost surely, 2212001000222020 is an apocalyptic number.

212001000222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001000222020 is an abundant number, since it is smaller than the sum of its proper divisors (233207696420284).

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

212001000222020 is a wasteful number, since it uses less digits than its factorization.

212001000222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157051819 (or 157051817 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212001000222020 its reverse (20222000100212), we get a palindrome (232223000322232).

The spelling of 212001000222020 in words is "two hundred twelve trillion, one billion, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 67523 135046 270092 337615 675230 1350460 156984287 313968574 627937148 784921435 1569842870 3139685740 10600050011101 21200100022202 42400200044404 53000250055505 106000500111010 212001000222020