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122032220220021 = 3161039252593513
BaseRepresentation
bin11011101111110011010111…
…001000110010101001110101
3121000002011111020122122120210
4123233303113020302221311
5111443333441334020041
61111312454505020033
734463352115063566
oct3357632710625165
9530064436578523
10122032220220021
1135979634a39201
121182a7b3784619
135312787017097
14221c568b8a16d
15e19511120016
hex6efcd7232a75

122032220220021 has 8 divisors (see below), whose sum is σ = 162710637978240. Its totient is φ = 81354307970912.

The previous prime is 122032220220013. The next prime is 122032220220047. The reversal of 122032220220021 is 120022022230221.

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 122032220220021 - 23 = 122032220220013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122032220220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122032220220121) 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, 125813640 + ... + 126779873.

It is an arithmetic number, because the mean of its divisors is an integer number (20338829747280).

Almost surely, 2122032220220021 is an apocalyptic number.

It is an amenable number.

122032220220021 is a deficient number, since it is larger than the sum of its proper divisors (40678417758219).

122032220220021 is a wasteful number, since it uses less digits than its factorization.

122032220220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252754555.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 122032220220021 its reverse (120022022230221), we get a palindrome (242054242450242).

The spelling of 122032220220021 in words is "one hundred twenty-two trillion, thirty-two billion, two hundred twenty million, two hundred twenty thousand, twenty-one".

Divisors: 1 3 161039 483117 252593513 757780539 40677406740007 122032220220021