2152421010 has 24 divisors (see below), whose sum is σ = 5596294860. Its totient is φ = 573978912.

The previous prime is 2152421009. The next prime is 2152421027. The reversal of 2152421010 is 101242512.

It can be written as a sum of positive squares in 2 ways, for example, as 2110391721 + 42029289 = 45939^2 + 6483^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11957805 + ... + 11957984.

Almost surely, 2^2152421010 is an apocalyptic number.

2152421010 is an abundant number, since it is smaller than the sum of its proper divisors (3443873850).

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

2152421010 is a wasteful number, since it uses less digits than its factorization.

2152421010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23915802 (or 23915799 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2152421010 is about 46394.1915545470. The cubic root of 2152421010 is about 1291.1471497614.

Adding to 2152421010 its reverse (101242512), we get a palindrome (2253663522).

The spelling of 2152421010 in words is "two billion, one hundred fifty-two million, four hundred twenty-one thousand, ten".