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22221010101 = 310173336667
BaseRepresentation
bin10100101100011110…
…011011010010110101
32010100121202021100010
4110230132123102311
5331002034310401
614112545210433
71414441320003
oct245436332265
963317667303
1022221010101
1194731a9864
124381930a19
1321318843b4
14110b271a73
158a0c37ed6
hex52c79b4b5

22221010101 has 8 divisors (see below), whose sum is σ = 29921360544. Its totient is φ = 14667333200.

The previous prime is 22221010069. The next prime is 22221010109. The reversal of 22221010101 is 10101012222.

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 22221010101 - 25 = 22221010069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221010109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36668031 + ... + 36668636.

It is an arithmetic number, because the mean of its divisors is an integer number (3740170068).

Almost surely, 222221010101 is an apocalyptic number.

It is an amenable number.

22221010101 is a deficient number, since it is larger than the sum of its proper divisors (7700350443).

22221010101 is a wasteful number, since it uses less digits than its factorization.

22221010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73336771.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22221010101 its reverse (10101012222), we get a palindrome (32322022323).

It can be divided in two parts, 22221010 and 101, that added together give a triangular number (22221111 = T6666).

The spelling of 22221010101 in words is "twenty-two billion, two hundred twenty-one million, ten thousand, one hundred one".

Divisors: 1 3 101 303 73336667 220010001 7407003367 22221010101