2141021000 has 64 divisors (see below), whose sum is σ = 5023540080. Its totient is φ = 854092800.

The previous prime is 2141020967. The next prime is 2141021011. The reversal of 2141021000 is 1201412.

It can be written as a sum of positive squares in 8 ways, for example, as 585349636 + 1555671364 = 24194^2 + 39442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394304 + ... + 399696.

Almost surely, 2^2141021000 is an apocalyptic number.

2141021000 is a gapful number since it is divisible by the number (20) 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 2141021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2511770040).

2141021000 is an abundant number, since it is smaller than the sum of its proper divisors (2882519080).

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

2141021000 is a wasteful number, since it uses less digits than its factorization.

2141021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811 (or 5797 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2141021000 is about 46271.1681287603. The cubic root of 2141021000 is about 1288.8636508578.

Adding to 2141021000 its reverse (1201412), we get a palindrome (2142222412).

The spelling of 2141021000 in words is "two billion, one hundred forty-one million, twenty-one thousand".