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122002011211 = 492232478557
BaseRepresentation
bin111000110011111100…
…0101111010001001011
3102122220112022022120211
41301213320233101023
53444330003324321
6132014050301551
711546215661533
oct1614770572113
9378815268524
10122002011211
1147816a55843
121b78a2878b7
13b673bb6ca2
145c951a64c3
153290b140e1
hex1c67e2f44b

122002011211 has 4 divisors (see below), whose sum is σ = 122004538992. Its totient is φ = 121999483432.

The previous prime is 122002011203. The next prime is 122002011227. The reversal of 122002011211 is 112110200221.

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 122002011211 - 23 = 122002011203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002011191 and 122002011200.

It is not an unprimeable number, because it can be changed into a prime (122002015211) 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, 1190056 + ... + 1288501.

It is an arithmetic number, because the mean of its divisors is an integer number (30501134748).

Almost surely, 2122002011211 is an apocalyptic number.

122002011211 is a deficient number, since it is larger than the sum of its proper divisors (2527781).

122002011211 is an equidigital number, since it uses as much as digits as its factorization.

122002011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527780.

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

Adding to 122002011211 its reverse (112110200221), we get a palindrome (234112211432).

The spelling of 122002011211 in words is "one hundred twenty-two billion, two million, eleven thousand, two hundred eleven".

Divisors: 1 49223 2478557 122002011211