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122021232113 = 1171691226103
BaseRepresentation
bin111000110100100001…
…0000011110111110001
3102122221212110211201002
41301221002003313301
53444344413411423
6132020014251345
711546541234254
oct1615102036761
9378855424632
10122021232113
1147826893790
121b7947b6b55
13b677b868c1
145c9796b09b
15329265e228
hex1c69083df1

122021232113 has 16 divisors (see below), whose sum is σ = 135184868352. Its totient is φ = 109207266000.

The previous prime is 122021232107. The next prime is 122021232167. The reversal of 122021232113 is 311232120221.

It is a cyclic number.

It is not a de Polignac number, because 122021232113 - 210 = 122021231089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021232713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426620 + ... + 652722.

It is an arithmetic number, because the mean of its divisors is an integer number (8449054272).

Almost surely, 2122021232113 is an apocalyptic number.

It is an amenable number.

122021232113 is a deficient number, since it is larger than the sum of its proper divisors (13163636239).

122021232113 is a wasteful number, since it uses less digits than its factorization.

122021232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226876.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 122021232113 its reverse (311232120221), we get a palindrome (433253352334).

The spelling of 122021232113 in words is "one hundred twenty-two billion, twenty-one million, two hundred thirty-two thousand, one hundred thirteen".

Divisors: 1 11 71 691 781 7601 49061 226103 539671 2487133 16053313 156237173 176586443 1718608903 11092839283 122021232113