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12220001022101 = 85487142945723
BaseRepresentation
bin1011000111010011000011…
…0100011111000010010101
31121021012221212210222121012
42301310300310133002111
53100203030230201401
641553442503302005
72400603005601215
oct261646064370225
947235855728535
1012220001022101
113991523002a34
12145439974a905
136a8458683982
14303646170245
15162d0c2638bb
hexb1d30d1f095

12220001022101 has 4 divisors (see below), whose sum is σ = 12220144053312. Its totient is φ = 12219857990892.

The previous prime is 12220001022071. The next prime is 12220001022107. The reversal of 12220001022101 is 10122010002221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12220001022101 - 238 = 11945123115157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220001022107) 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, 71387375 + ... + 71558348.

It is an arithmetic number, because the mean of its divisors is an integer number (3055036013328).

Almost surely, 212220001022101 is an apocalyptic number.

It is an amenable number.

12220001022101 is a deficient number, since it is larger than the sum of its proper divisors (143031211).

12220001022101 is an equidigital number, since it uses as much as digits as its factorization.

12220001022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143031210.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220001022101 its reverse (10122010002221), we get a palindrome (22342011024322).

The spelling of 12220001022101 in words is "twelve trillion, two hundred twenty billion, one million, twenty-two thousand, one hundred one".

Divisors: 1 85487 142945723 12220001022101