2071150221 has 32 divisors (see below), whose sum is σ = 3246622720. Its totient is φ = 1149650496.

The previous prime is 2071150201. The next prime is 2071150223. The reversal of 2071150221 is 1220511702.

It is not a de Polignac number, because 2071150221 - 2¹¹ = 2071148173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071150223) 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, 572400 + ... + 576006.

It is an arithmetic number, because the mean of its divisors is an integer number (101456960).

Almost surely, 2^2071150221 is an apocalyptic number.

2071150221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2071150221 is a deficient number, since it is larger than the sum of its proper divisors (1175472499).

2071150221 is a wasteful number, since it uses less digits than its factorization.

2071150221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 2071150221 is about 45509.8914632852. The cubic root of 2071150221 is about 1274.6879094653.

Adding to 2071150221 its reverse (1220511702), we get a palindrome (3291661923).

The spelling of 2071150221 in words is "two billion, seventy-one million, one hundred fifty thousand, two hundred twenty-one".