Search a number
-
+
122100211201 = 886631377127
BaseRepresentation
bin111000110110110111…
…1010101111000000001
3102200011101002101122111
41301231233111320001
54000030123224301
6132031515135321
711551520446063
oct1615557257001
9380141071574
10122100211201
1147867427961
121b7b7144541
13b68b34a3a7
145ca4249733
153299560551
hex1c6dbd5e01

122100211201 has 4 divisors (see below), whose sum is σ = 122101676992. Its totient is φ = 122098745412.

The previous prime is 122100211187. The next prime is 122100211213. The reversal of 122100211201 is 102112001221.

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 122100211201 - 25 = 122100211169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122100211601) 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, 599901 + ... + 777226.

It is an arithmetic number, because the mean of its divisors is an integer number (30525419248).

Almost surely, 2122100211201 is an apocalyptic number.

It is an amenable number.

122100211201 is a deficient number, since it is larger than the sum of its proper divisors (1465791).

122100211201 is an equidigital number, since it uses as much as digits as its factorization.

122100211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465790.

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

Adding to 122100211201 its reverse (102112001221), we get a palindrome (224212212422).

The spelling of 122100211201 in words is "one hundred twenty-two billion, one hundred million, two hundred eleven thousand, two hundred one".

Divisors: 1 88663 1377127 122100211201