2150221311 has 24 divisors (see below), whose sum is σ = 3609740160. Its totient is φ = 1207870416.

The previous prime is 2150221303. The next prime is 2150221361. The reversal of 2150221311 is 1131220512.

2150221311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2150221311 - 2³ = 2150221303 is a prime.

It is a super-3 number, since 3×2150221311³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150221361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285525 + ... + 292958.

It is an arithmetic number, because the mean of its divisors is an integer number (150405840).

Almost surely, 2^2150221311 is an apocalyptic number.

2150221311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2150221311 is a deficient number, since it is larger than the sum of its proper divisors (1459518849).

2150221311 is a wasteful number, since it uses less digits than its factorization.

2150221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578555 (or 578552 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2150221311 is about 46370.4788739560. The cubic root of 2150221311 is about 1290.7071640992.

Adding to 2150221311 its reverse (1131220512), we get a palindrome (3281441823).

The spelling of 2150221311 in words is "two billion, one hundred fifty million, two hundred twenty-one thousand, three hundred eleven".