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10022120121221 = 131200676420851
BaseRepresentation
bin1001000111010111010011…
…1010001110001110000101
31022111002211210010211122022
42101311310322032032011
52303200300222334341
633152033132012525
72053034323310525
oct221656472161605
938432753124568
1010022120121221
1132143a259453a
12115a42b901145
1357910ab47650
14269104c1b685
15125a71d9ce4b
hex91d74e8e385

10022120121221 has 8 divisors (see below), whose sum is σ = 10793144011104. Its totient is φ = 9251109313200.

The previous prime is 10022120121193. The next prime is 10022120121241. The reversal of 10022120121221 is 12212102122001.

10022120121221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10022120121221 - 234 = 10004940252037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10022120121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022120121241) 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, 1649555 + ... + 4771296.

It is an arithmetic number, because the mean of its divisors is an integer number (1349143001388).

Almost surely, 210022120121221 is an apocalyptic number.

It is an amenable number.

10022120121221 is a deficient number, since it is larger than the sum of its proper divisors (771023889883).

10022120121221 is a wasteful number, since it uses less digits than its factorization.

10022120121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540931.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10022120121221 its reverse (12212102122001), we get a palindrome (22234222243222).

The spelling of 10022120121221 in words is "ten trillion, twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 13 120067 1560871 6420851 83471063 770932317017 10022120121221