1120220101 has 32 divisors (see below), whose sum is σ = 1526611968.
Its totient is φ = 793679040.
The previous prime is 1120220089. The next prime is 1120220131. The reversal of 1120220101 is 1010220211.
Adding to 1120220101 its reverse (1010220211), we get a palindrome (2130440312).
It is not a de Polignac number, because 1120220101 - 27 = 1120219973 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1120220131) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58716 + ... + 75418.
It is an arithmetic number, because the mean of its divisors is an integer number (47706624).
Almost surely, 21120220101 is an apocalyptic number.
1120220101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1120220101 is a deficient number, since it is larger than the sum of its proper divisors (406391867).
1120220101 is a wasteful number, since it uses less digits than its factorization.
1120220101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16801.
The product of its (nonzero) digits is 8, while the sum is 10.
The square root of 1120220101 is about 33469.6892874732.
The cubic root of 1120220101 is about 1038.5668440778.
The spelling of 1120220101 in words is "one billion, one hundred twenty million, two hundred twenty thousand, one hundred one".