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122000202120221 = 631291721662771
BaseRepresentation
bin11011101111010101100010…
…101101011011110000011101
3120222222002211211221122201122
4123233111202231123300131
5111442322403220321341
61111250041422020325
734461136511530055
oct3357254255336035
9528862754848648
10122000202120221
1135966aa46159a7
1211824558a176a5
13530c75380b3b9
14221abac6d4565
15e1878a25a94b
hex6ef562b5bc1d

122000202120221 has 8 divisors (see below), whose sum is σ = 122194149578688. Its totient is φ = 121806256572000.

The previous prime is 122000202120217. The next prime is 122000202120241. The reversal of 122000202120221 is 122021202000221.

It is a happy number.

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 122000202120221 - 22 = 122000202120217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122000202120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000202120241) 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, 183744566 + ... + 184407336.

It is an arithmetic number, because the mean of its divisors is an integer number (15274268697336).

Almost surely, 2122000202120221 is an apocalyptic number.

It is an amenable number.

122000202120221 is a deficient number, since it is larger than the sum of its proper divisors (193947458467).

122000202120221 is an equidigital number, since it uses as much as digits as its factorization.

122000202120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955123.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122000202120221 its reverse (122021202000221), we get a palindrome (244021404120442).

The spelling of 122000202120221 in words is "one hundred twenty-two trillion, two hundred two million, one hundred twenty thousand, two hundred twenty-one".

Divisors: 1 631 291721 662771 184075951 418208501 193344218891 122000202120221