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122002101211 = 443275399777
BaseRepresentation
bin111000110011111100…
…1000101001111011011
3102122220112110220001011
41301213321011033123
53444330014214321
6132014052234351
711546216515114
oct1614771051733
9378815426034
10122002101211
1147817007421
121b78a30b9b7
13b673c18c43
145c951cb20b
153290b30ae1
hex1c67e453db

122002101211 has 4 divisors (see below), whose sum is σ = 122277501432. Its totient is φ = 121726700992.

The previous prime is 122002101197. The next prime is 122002101229. The reversal of 122002101211 is 112101200221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122002101211 - 219 = 122001576923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002101191 and 122002101200.

It is not an unprimeable number, because it can be changed into a prime (122002101251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137699446 + ... + 137700331.

It is an arithmetic number, because the mean of its divisors is an integer number (30569375358).

Almost surely, 2122002101211 is an apocalyptic number.

122002101211 is a deficient number, since it is larger than the sum of its proper divisors (275400221).

122002101211 is an equidigital number, since it uses as much as digits as its factorization.

122002101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275400220.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122002101211 its reverse (112101200221), we get a palindrome (234103301432).

The spelling of 122002101211 in words is "one hundred twenty-two billion, two million, one hundred one thousand, two hundred eleven".

Divisors: 1 443 275399777 122002101211