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122112212101 = 1117364168267
BaseRepresentation
bin111000110111001110…
…1000111110010000101
3102200012012200002210021
41301232131013302011
54000041211241401
6132033024255141
711552024451115
oct1615635076205
9380165602707
10122112212101
1147873184360
121b7bb1714b1
13b69098c909
145ca5a91045
15329a6312a1
hex1c6e747c85

122112212101 has 8 divisors (see below), whose sum is σ = 133983343584. Its totient is φ = 110369417520.

The previous prime is 122112212063. The next prime is 122112212153. The reversal of 122112212101 is 101212211221.

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 122112212101 - 27 = 122112211973 is a prime.

It is a super-2 number, since 2×1221122121012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112212171) 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, 32082231 + ... + 32086036.

It is an arithmetic number, because the mean of its divisors is an integer number (16747917948).

Almost surely, 2122112212101 is an apocalyptic number.

122112212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122112212101 is a deficient number, since it is larger than the sum of its proper divisors (11871131483).

122112212101 is a wasteful number, since it uses less digits than its factorization.

122112212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64168451.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122112212101 its reverse (101212211221), we get a palindrome (223324423322).

The spelling of 122112212101 in words is "one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, one hundred one".

Divisors: 1 11 173 1903 64168267 705850937 11101110191 122112212101