2021211000 has 96 divisors (see below), whose sum is σ = 6831723600. Its totient is φ = 538987200.

The previous prime is 2021210993. The next prime is 2021211011. The reversal of 2021211000 is 1121202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103290 + ... + 121289.

Almost surely, 2^2021211000 is an apocalyptic number.

2021211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021211000 is an abundant number, since it is smaller than the sum of its proper divisors (4810512600).

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

2021211000 is a wasteful number, since it uses less digits than its factorization.

2021211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224606 (or 224589 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2021211000 is about 44957.8802881097. The cubic root of 2021211000 is about 1264.3594271737.

Adding to 2021211000 its reverse (1121202), we get a palindrome (2022332202).

The spelling of 2021211000 in words is "two billion, twenty-one million, two hundred eleven thousand".