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122010222220021 = 199376853351807
BaseRepresentation
bin11011101111011110110111…
…111101000101001011110101
3121000000001201011112110121001
4123233132313331011023311
5111443003413342020041
61111254420003323301
734461643022135032
oct3357366775051365
9530001634473531
10122010222220021
1135970276709213
1211826494680531
13531068c715535
14221b47d3aa389
15e18b74c89131
hex6ef7b7f452f5

122010222220021 has 8 divisors (see below), whose sum is σ = 128568879918080. Its totient is φ = 115465271227488.

The previous prime is 122010222220013. The next prime is 122010222220141. The reversal of 122010222220021 is 120022222010221.

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 122010222220021 - 23 = 122010222220013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010222220921) 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, 3426658101 + ... + 3426693706.

It is an arithmetic number, because the mean of its divisors is an integer number (16071109989760).

Almost surely, 2122010222220021 is an apocalyptic number.

It is an amenable number.

122010222220021 is a deficient number, since it is larger than the sum of its proper divisors (6558657698059).

122010222220021 is an equidigital number, since it uses as much as digits as its factorization.

122010222220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853352763.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122010222220021 its reverse (120022222010221), we get a palindrome (242032444230242).

The spelling of 122010222220021 in words is "one hundred twenty-two trillion, ten billion, two hundred twenty-two million, two hundred twenty thousand, twenty-one".

Divisors: 1 19 937 17803 6853351807 130213684333 6421590643159 122010222220021