2211000202021 has 32 divisors (see below), whose sum is σ = 2534583744000. Its totient is φ = 1910632458240.

The previous prime is 2211000202013. The next prime is 2211000202031. The reversal of 2211000202021 is 1202020001122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2211000202021 - 2³ = 2211000202013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211000201992 and 2211000202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211000202031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207971376 + ... + 207982006.

It is an arithmetic number, because the mean of its divisors is an integer number (79205742000).

Almost surely, 2^{2211000202021} is an apocalyptic number.

It is an amenable number.

2211000202021 is a deficient number, since it is larger than the sum of its proper divisors (323583541979).

2211000202021 is a wasteful number, since it uses less digits than its factorization.

2211000202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15589.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2211000202021 its reverse (1202020001122), we get a palindrome (3413020203143).

The spelling of 2211000202021 in words is "two trillion, two hundred eleven billion, two hundred two thousand, twenty-one".