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222202001122021 = 2115771825112743
BaseRepresentation
bin110010100001011101101111…
…010110000110001011100101
31002010202022012111200122001001
4302201131233112012023211
5213111024144241401041
62104330105021433301
764542364505135464
oct6241355726061345
91063668174618031
10222202001122021
1164889380925a18
1220b082a070b831
1396ca7358a40cb
143cc28c44c09db
151aa4eb5dac131
hexca176f5862e5

222202001122021 has 8 divisors (see below), whose sum is σ = 223642015198784. Its totient is φ = 220765637272320.

The previous prime is 222202001122019. The next prime is 222202001122027. The reversal of 222202001122021 is 120221100202222.

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 222202001122021 - 21 = 222202001122019 is a prime.

It is a super-2 number, since 2×2222020011220212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222202001122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202001122027) 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, 912434625 + ... + 912678118.

It is an arithmetic number, because the mean of its divisors is an integer number (27955251899848).

Almost surely, 2222202001122021 is an apocalyptic number.

It is an amenable number.

222202001122021 is a deficient number, since it is larger than the sum of its proper divisors (1440014076763).

222202001122021 is a wasteful number, since it uses less digits than its factorization.

222202001122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825113531.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222202001122021 its reverse (120221100202222), we get a palindrome (342423101324243).

The spelling of 222202001122021 in words is "two hundred twenty-two trillion, two hundred two billion, one million, one hundred twenty-two thousand, twenty-one".

Divisors: 1 211 577 121747 1825112743 385098788773 1053090052711 222202001122021