2101213224 has 192 divisors, whose sum is σ = 6510853440. Its totient is φ = 629544960.

The previous prime is 2101213123. The next prime is 2101213237. The reversal of 2101213224 is 4223121012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2101213197 and 2101213206.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2073742 + ... + 2074754.

It is an arithmetic number, because the mean of its divisors is an integer number (33910695).

Almost surely, 2^2101213224 is an apocalyptic number.

2101213224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101213224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3255426720).

2101213224 is an abundant number, since it is smaller than the sum of its proper divisors (4409640216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101213224 is a wasteful number, since it uses less digits than its factorization.

2101213224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2101213224 is about 45838.9923973030. The cubic root of 2101213224 is about 1280.8257253498.

Adding to 2101213224 its reverse (4223121012), we get a palindrome (6324334236).

The spelling of 2101213224 in words is "two billion, one hundred one million, two hundred thirteen thousand, two hundred twenty-four".