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120112212001 = 235222270087
BaseRepresentation
bin110111111011100111…
…1101110100000100001
3102111000211022120102111
41233313033232200201
53431442211241001
6131102341315321
711451330646045
oct1576717564041
9374024276374
10120112212001
1146a37237711
121b341405b41
13b4325154c2
145b561d6025
1531cec6d851
hex1bf73ee821

120112212001 has 4 divisors (see below), whose sum is σ = 125334482112. Its totient is φ = 114889941892.

The previous prime is 120112211981. The next prime is 120112212007. The reversal of 120112212001 is 100212211021.

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 120112212001 - 25 = 120112211969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120112212007) 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, 2611135021 + ... + 2611135066.

It is an arithmetic number, because the mean of its divisors is an integer number (31333620528).

Almost surely, 2120112212001 is an apocalyptic number.

It is an amenable number.

120112212001 is a deficient number, since it is larger than the sum of its proper divisors (5222270111).

120112212001 is an equidigital number, since it uses as much as digits as its factorization.

120112212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222270110.

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

Adding to 120112212001 its reverse (100212211021), we get a palindrome (220324423022).

The spelling of 120112212001 in words is "one hundred twenty billion, one hundred twelve million, two hundred twelve thousand, one".

Divisors: 1 23 5222270087 120112212001