101211144 has 16 divisors (see below), whose sum is σ = 253027920.
Its totient is φ = 33737040.
The previous prime is 101211059. The next prime is 101211151. The reversal of 101211144 is 441112101.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2108542 + ... + 2108589.
It is an arithmetic number, because the mean of its divisors is an integer number (15814245).
Almost surely, 2101211144 is an apocalyptic number.
It is an amenable number.
101211144 is an abundant number, since it is smaller than the sum of its proper divisors (151816776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
101211144 is a wasteful number, since it uses less digits than its factorization.
101211144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4217140 (or 4217136 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
The square root of 101211144 is about 10060.3749433110.
The cubic root of 101211144 is about 466.0252462269.
Adding to 101211144 its reverse (441112101), we get a palindrome (542323245).
The spelling of 101211144 in words is "one hundred one million, two hundred eleven thousand, one hundred forty-four".