9250211220 has 48 divisors (see below), whose sum is σ = 25908146880. Its totient is φ = 2466003456.

The previous prime is 9250211197. The next prime is 9250211221. The reversal of 9250211220 is 221120529.

It is a super-2 number, since 2×9250211220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9250211221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203724 + ... + 244956.

It is an arithmetic number, because the mean of its divisors is an integer number (539753060).

Almost surely, 2^9250211220 is an apocalyptic number.

It is an amenable number.

9250211220 is an abundant number, since it is smaller than the sum of its proper divisors (16657935660).

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

9250211220 is a wasteful number, since it uses less digits than its factorization.

9250211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44984 (or 44982 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 9250211220 is about 96178.0183825805. The cubic root of 9250211220 is about 2099.1842046677.

Adding to 9250211220 its reverse (221120529), we get a palindrome (9471331749).

The spelling of 9250211220 in words is "nine billion, two hundred fifty million, two hundred eleven thousand, two hundred twenty".