2021200110011 has 4 divisors (see below), whose sum is σ = 2021211615072. Its totient is φ = 2021188604952.

The previous prime is 2021200109969. The next prime is 2021200110043. The reversal of 2021200110011 is 1100110021202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021200110011 is a prime.

It is a Duffinian number.

2021200110011 is a modest number, since divided by 110011 gives 20212 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2021200109974 and 2021200110001.

It is not an unprimeable number, because it can be changed into a prime (2021200113011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5484860 + ... + 5841753.

It is an arithmetic number, because the mean of its divisors is an integer number (505302903768).

Almost surely, 2^{2021200110011} is an apocalyptic number.

2021200110011 is a deficient number, since it is larger than the sum of its proper divisors (11505061).

2021200110011 is a wasteful number, since it uses less digits than its factorization.

2021200110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505060.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2021200110011 its reverse (1100110021202), we get a palindrome (3121310131213).

The spelling of 2021200110011 in words is "two trillion, twenty-one billion, two hundred million, one hundred ten thousand, eleven".