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222020101 = 311713891
BaseRepresentation
bin11010011101111…
…00001000000101
3120110202210022201
431032330020011
5423314120401
634010354501
75334065632
oct1516741005
9513683281
10222020101
11104362a96
126242ba31
1336cc7054
14216b5189
1514758b01
hexd3bc205

222020101 has 4 divisors (see below), whose sum is σ = 222734304. Its totient is φ = 221305900.

The previous prime is 222020093. The next prime is 222020131. The reversal of 222020101 is 101020222.

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 222020101 - 23 = 222020093 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 (222020131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356635 + ... + 357256.

It is an arithmetic number, because the mean of its divisors is an integer number (55683576).

Almost surely, 2222020101 is an apocalyptic number.

It is an amenable number.

222020101 is a deficient number, since it is larger than the sum of its proper divisors (714203).

222020101 is an equidigital number, since it uses as much as digits as its factorization.

222020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714202.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 222020101 is about 14900.3389558761. The cubic root of 222020101 is about 605.5231692556.

Adding to 222020101 its reverse (101020222), we get a palindrome (323040323).

The spelling of 222020101 in words is "two hundred twenty-two million, twenty thousand, one hundred one".

Divisors: 1 311 713891 222020101