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210022202012021 = 7521231701248543
BaseRepresentation
bin101111110000001110011010…
…101111101111000101110101
31000112121221000100212101021022
4233300032122233233011311
5210012000432203341041
62022402511224430525
762144413644655130
oct5760163257570565
91015557010771238
10210022202012021
1160a12a0884a633
121b67b862618445
139026016079409
1439c11b367b217
15194325d21624b
hexbf039abef175

210022202012021 has 16 divisors (see below), whose sum is σ = 240488080524288. Its totient is φ = 179672005968000.

The previous prime is 210022202012003. The next prime is 210022202012027. The reversal of 210022202012021 is 120210202220012.

It is a happy number.

It is not a de Polignac number, because 210022202012021 - 234 = 210005022142837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022202012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844889276 + ... + 845137818.

It is an arithmetic number, because the mean of its divisors is an integer number (15030505032768).

Almost surely, 2210022202012021 is an apocalyptic number.

It is an amenable number.

210022202012021 is a deficient number, since it is larger than the sum of its proper divisors (30465878512267).

210022202012021 is a wasteful number, since it uses less digits than its factorization.

210022202012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480772.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210022202012021 its reverse (120210202220012), we get a palindrome (330232404232033).

The spelling of 210022202012021 in words is "two hundred ten trillion, twenty-two billion, two hundred two million, twelve thousand, twenty-one".

Divisors: 1 7 521 3647 231701 248543 1621907 1739801 120716221 129490903 845013547 906436321 57587661643 403113631501 30003171716003 210022202012021