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120201101 = 177070653
BaseRepresentation
bin1110010101000…
…01111110001101
322101011211220122
413022201332031
5221232413401
615532154325
72656456346
oct712417615
9271154818
10120201101
1161939959
12343089a5
131bb97617
1411d6d0cd
15a84521b
hex72a1f8d

120201101 has 4 divisors (see below), whose sum is σ = 127271772. Its totient is φ = 113130432.

The previous prime is 120201091. The next prime is 120201119. The reversal of 120201101 is 101102021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41860900 + 78340201 = 6470^2 + 8851^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201101 - 222 = 116006797 is a prime.

It is a super-2 number, since 2×1202011012 = 28896609363224402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120206101) 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, 3535310 + ... + 3535343.

It is an arithmetic number, because the mean of its divisors is an integer number (31817943).

Almost surely, 2120201101 is an apocalyptic number.

It is an amenable number.

120201101 is a deficient number, since it is larger than the sum of its proper divisors (7070671).

120201101 is an equidigital number, since it uses as much as digits as its factorization.

120201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070670.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 120201101 is about 10963.6262705366. The cubic root of 120201101 is about 493.5177931567.

Adding to 120201101 its reverse (101102021), we get a palindrome (221303122).

The spelling of 120201101 in words is "one hundred twenty million, two hundred one thousand, one hundred one".

Divisors: 1 17 7070653 120201101