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122061110721 = 3113698821537
BaseRepresentation
bin111000110101101101…
…0001011110111000001
3102200001122111212212120
41301223122023313001
53444440121020341
6132024001114453
711550534215364
oct1615332136701
9380048455776
10122061110721
1147847351110
121b7a6028a29
13b68320a104
145c9cd8c0db
153295dda066
hex1c6b68bdc1

122061110721 has 8 divisors (see below), whose sum is σ = 177543433824. Its totient is φ = 73976430720.

The previous prime is 122061110651. The next prime is 122061110761. The reversal of 122061110721 is 127011160221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122061110721 - 219 = 122060586433 is a prime.

It is a super-2 number, since 2×1220611107212 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122061110691 and 122061110700.

It is not an unprimeable number, because it can be changed into a prime (122061110761) 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, 1849410736 + ... + 1849410801.

It is an arithmetic number, because the mean of its divisors is an integer number (22192929228).

Almost surely, 2122061110721 is an apocalyptic number.

122061110721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122061110721 is a deficient number, since it is larger than the sum of its proper divisors (55482323103).

122061110721 is a wasteful number, since it uses less digits than its factorization.

122061110721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698821551.

The product of its (nonzero) digits is 336, while the sum is 24.

Adding to 122061110721 its reverse (127011160221), we get a palindrome (249072270942).

The spelling of 122061110721 in words is "one hundred twenty-two billion, sixty-one million, one hundred ten thousand, seven hundred twenty-one".

Divisors: 1 3 11 33 3698821537 11096464611 40687036907 122061110721