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122200212021 = 3371100902811
BaseRepresentation
bin111000111001110110…
…0110100001000110101
3102200102100020221222120
41301303230310020311
54000231223241041
6132045450350153
711554143443466
oct1616354641065
9380370227876
10122200212021
1147908919a68
121b82472b359
13b6a5c91384
145cb363ad6d
1532a3215366
hex1c73b34235

122200212021 has 8 divisors (see below), whose sum is σ = 167337227424. Its totient is φ = 79265002320.

The previous prime is 122200212007. The next prime is 122200212023. The reversal of 122200212021 is 120212002221.

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

It is not a de Polignac number, because 122200212021 - 211 = 122200209973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200212023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550451295 + ... + 550451516.

It is an arithmetic number, because the mean of its divisors is an integer number (20917153428).

Almost surely, 2122200212021 is an apocalyptic number.

It is an amenable number.

122200212021 is a deficient number, since it is larger than the sum of its proper divisors (45137015403).

122200212021 is a wasteful number, since it uses less digits than its factorization.

122200212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100902851.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122200212021 its reverse (120212002221), we get a palindrome (242412214242).

The spelling of 122200212021 in words is "one hundred twenty-two billion, two hundred million, two hundred twelve thousand, twenty-one".

Divisors: 1 3 37 111 1100902811 3302708433 40733404007 122200212021