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121213323222 = 2320202220537
BaseRepresentation
bin111000011100011100…
…0001000011111010110
3102120212120020211001120
41300320320020133112
53441221102320342
6131403514104410
711520531150615
oct1607070103726
9376776224046
10121213323222
1147451840892
121b5aa11b106
13b579694bc4
145c1c54387c
153246773aec
hex1c38e087d6

121213323222 has 8 divisors (see below), whose sum is σ = 242426646456. Its totient is φ = 40404441072.

The previous prime is 121213323173. The next prime is 121213323227. The reversal of 121213323222 is 222323312121.

121213323222 is digitally balanced in base 3, 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.

121213323222 is an admirable number.

It is a super-2 number, since 2×1212133232222 (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121213323192 and 121213323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213323227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10101110263 + ... + 10101110274.

It is an arithmetic number, because the mean of its divisors is an integer number (30303330807).

Almost surely, 2121213323222 is an apocalyptic number.

121213323222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121213323222 is a wasteful number, since it uses less digits than its factorization.

121213323222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20202220542.

The product of its digits is 1728, while the sum is 24.

Adding to 121213323222 its reverse (222323312121), we get a palindrome (343536635343).

The spelling of 121213323222 in words is "one hundred twenty-one billion, two hundred thirteen million, three hundred twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 20202220537 40404441074 60606661611 121213323222