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220022101 = 1329583613
BaseRepresentation
bin11010001110101…
…00010101010101
3120100000021120201
431013110111111
5422311201401
633455500501
75311104565
oct1507242525
9510007521
10220022101
11103218952
1261827731
13367777c0
1421314da5
15144b1b01
hexd1d4555

220022101 has 8 divisors (see below), whose sum is σ = 245117880. Its totient is φ = 196093632.

The previous prime is 220022083. The next prime is 220022107. The reversal of 220022101 is 101220022.

220022101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 60606225 + 159415876 = 7785^2 + 12626^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-220022101 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 (220022107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291430 + ... + 292183.

It is an arithmetic number, because the mean of its divisors is an integer number (30639735).

Almost surely, 2220022101 is an apocalyptic number.

It is an amenable number.

220022101 is a deficient number, since it is larger than the sum of its proper divisors (25095779).

220022101 is a wasteful number, since it uses less digits than its factorization.

220022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583655.

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

The square root of 220022101 is about 14833.1419800392. The cubic root of 220022101 is about 603.7012880868.

Adding to 220022101 its reverse (101220022), we get a palindrome (321242123).

It can be divided in two parts, 220022 and 101, that multiplied together give a palindrome (22222222).

The spelling of 220022101 in words is "two hundred twenty million, twenty-two thousand, one hundred one".

Divisors: 1 13 29 377 583613 7586969 16924777 220022101