2100021021211 has 8 divisors (see below), whose sum is σ = 2219720848400. Its totient is φ = 1981238434560.

The previous prime is 2100021021199. The next prime is 2100021021223. The reversal of 2100021021211 is 1121201200012.

It is an interprime number because it is at equal distance from previous prime (2100021021199) and next prime (2100021021223).

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

It is a cyclic number.

It is not a de Polignac number, because 2100021021211 - 2¹³ = 2100021013019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100021021191 and 2100021021200.

It is not an unprimeable number, because it can be changed into a prime (2100021021271) 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, 229305426 + ... + 229314583.

It is an arithmetic number, because the mean of its divisors is an integer number (277465106050).

Almost surely, 2^{2100021021211} is an apocalyptic number.

2100021021211 is a deficient number, since it is larger than the sum of its proper divisors (119699827189).

2100021021211 is a wasteful number, since it uses less digits than its factorization.

2100021021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458620269.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2100021021211 its reverse (1121201200012), we get a palindrome (3221222221223).

The spelling of 2100021021211 in words is "two trillion, one hundred billion, twenty-one million, twenty-one thousand, two hundred eleven".