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122110220212001 = 722711779189737
BaseRepresentation
bin11011110000111100000000…
…010011001001011100100001
3121000100121211012101210100122
4123300330000103021130201
5112001123212333241001
61111412354415330025
734502113043061200
oct3360740023113441
9530317735353318
10122110220212001
11359a97209a269a
1211841941820915
135319c379a0ca8
142222248067237
15e1b578c28b1b
hex6f0f004c9721

122110220212001 has 12 divisors (see below), whose sum is σ = 142047121967748. Its totient is φ = 104665505680512.

The previous prime is 122110220211953. The next prime is 122110220212003. The reversal of 122110220212001 is 100212022011221.

It can be written as a sum of positive squares in 2 ways, for example, as 53667360291601 + 68442859920400 = 7325801^2 + 8273020^2 .

It is not a de Polignac number, because 122110220212001 - 222 = 122110216017697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122110220212003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8692805 + ... + 17882541.

It is an arithmetic number, because the mean of its divisors is an integer number (11837260163979).

Almost surely, 2122110220212001 is an apocalyptic number.

It is an amenable number.

122110220212001 is a deficient number, since it is larger than the sum of its proper divisors (19936901755747).

122110220212001 is an equidigital number, since it uses as much as digits as its factorization.

122110220212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460928 (or 9460921 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122110220212001 its reverse (100212022011221), we get a palindrome (222322242223222).

The spelling of 122110220212001 in words is "one hundred twenty-two trillion, one hundred ten billion, two hundred twenty million, two hundred twelve thousand, one".

Divisors: 1 7 49 271177 1898239 9189737 13287673 64328159 450297113 2492045310449 17444317173143 122110220212001