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12101102202212 = 223781764204069
BaseRepresentation
bin1011000000011000000111…
…1001011110110101100100
31120211212001121201010020022
42300012001321132311210
53041231024130432322
641423100345054312
72356163410365362
oct260060171366544
946755047633208
1012101102202212
113946059799821
121435336787398
1369a18a67148a
142db9a7192632
1515eb9dcc8942
hexb0181e5ed64

12101102202212 has 12 divisors (see below), whose sum is σ = 21749278282620. Its totient is φ = 5887022692896.

The previous prime is 12101102202179. The next prime is 12101102202269. The reversal of 12101102202212 is 21220220110121.

It can be written as a sum of positive squares in 2 ways, for example, as 7124169544996 + 4976932657216 = 2669114^2 + 2230904^2 .

It is a super-2 number, since 2×121011022022122 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40882101887 + ... + 40882102182.

It is an arithmetic number, because the mean of its divisors is an integer number (1812439856885).

Almost surely, 212101102202212 is an apocalyptic number.

It is an amenable number.

12101102202212 is a deficient number, since it is larger than the sum of its proper divisors (9648176080408).

12101102202212 is a wasteful number, since it uses less digits than its factorization.

12101102202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81764204110 (or 81764204108 counting only the distinct ones).

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

Adding to 12101102202212 its reverse (21220220110121), we get a palindrome (33321322312333).

The spelling of 12101102202212 in words is "twelve trillion, one hundred one billion, one hundred two million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 37 74 148 81764204069 163528408138 327056816276 3025275550553 6050551101106 12101102202212