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12122222231131 = 211313999409813
BaseRepresentation
bin1011000001100110110010…
…1111111111111001011011
31120220212120111202202022121
42300121230233333321123
53042102302342344011
641440512204402111
72360541652564615
oct260315457777133
946825514682277
1012122222231131
113954007473081
12143944b846337
1369c1750c03cc
142dca0c10bdb5
151604d8034e71
hexb066cbffe5b

12122222231131 has 8 divisors (see below), whose sum is σ = 12128855144000. Its totient is φ = 12115590170112.

The previous prime is 12122222231117. The next prime is 12122222231233. The reversal of 12122222231131 is 13113222222121.

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 12122222231131 - 219 = 12122221706843 is a prime.

It is a super-2 number, since 2×121222222311312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122222231096 and 12122222231105.

It is not an unprimeable number, because it can be changed into a prime (12122222231111) 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, 29374981 + ... + 29784793.

It is an arithmetic number, because the mean of its divisors is an integer number (1516106893000).

Almost surely, 212122222231131 is an apocalyptic number.

12122222231131 is a deficient number, since it is larger than the sum of its proper divisors (6632912869).

12122222231131 is a wasteful number, since it uses less digits than its factorization.

12122222231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425925.

The product of its digits is 1152, while the sum is 25.

Adding to 12122222231131 its reverse (13113222222121), we get a palindrome (25235444453252).

The spelling of 12122222231131 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 2113 13999 409813 29579887 865934869 5736972187 12122222231131