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11102122012212 = 223371179149113417
BaseRepresentation
bin1010000110001110101000…
…0010011110111000110100
31110022100111222020102002000
42201203222002132320310
52423344121213342322
635340124444415300
72224046635025340
oct241435202367064
943270458212060
1011102122012212
1135a0424498210
1212b37ba247530
13626c0575a90a
142a54ba372620
15143bd1d583ac
hexa18ea09ee34

11102122012212 has 384 divisors, whose sum is σ = 36584110080000. Its totient is φ = 2828032496640.

The previous prime is 11102122012181. The next prime is 11102122012259. The reversal of 11102122012212 is 21221022120111.

It is a super-2 number, since 2×111021220122122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 97830928 + ... + 97944344.

It is an arithmetic number, because the mean of its divisors is an integer number (95271120000).

Almost surely, 211102122012212 is an apocalyptic number.

11102122012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11102122012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18292055040000).

11102122012212 is an abundant number, since it is smaller than the sum of its proper divisors (25481988067788).

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

11102122012212 is a wasteful number, since it uses less digits than its factorization.

11102122012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113676 (or 113668 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11102122012212 its reverse (21221022120111), we get a palindrome (32323144132323).

The spelling of 11102122012212 in words is "eleven trillion, one hundred two billion, one hundred twenty-two million, twelve thousand, two hundred twelve".