2102133021 has 8 divisors (see below), whose sum is σ = 2829039264. Its totient is φ = 1388324400.

The previous prime is 2102132983. The next prime is 2102133037. The reversal of 2102133021 is 1203312012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2102133021 - 2¹¹ = 2102130973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102133071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3274030 + ... + 3274671.

It is an arithmetic number, because the mean of its divisors is an integer number (353629908).

Almost surely, 2^2102133021 is an apocalyptic number.

It is an amenable number.

2102133021 is a deficient number, since it is larger than the sum of its proper divisors (726906243).

2102133021 is a wasteful number, since it uses less digits than its factorization.

2102133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6548811.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2102133021 is about 45849.0242099000. The cubic root of 2102133021 is about 1281.0125900597.

Adding to 2102133021 its reverse (1203312012), we get a palindrome (3305445033).

The spelling of 2102133021 in words is "two billion, one hundred two million, one hundred thirty-three thousand, twenty-one".