2200011221021 has 2 divisors, whose sum is σ = 2200011221022. Its totient is φ = 2200011221020.

The previous prime is 2200011220969. The next prime is 2200011221041. The reversal of 2200011221021 is 1201221100022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1128343195225 + 1071668025796 = 1062235^2 + 1035214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200011221021 - 2²² = 2200007026717 is a prime.

It is a super-2 number, since 2×2200011221021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2200011220987 and 2200011221005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200011221041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100005610510 + 1100005610511.

It is an arithmetic number, because the mean of its divisors is an integer number (1100005610511).

Almost surely, 2^{2200011221021} is an apocalyptic number.

It is an amenable number.

2200011221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200011221021 is an equidigital number, since it uses as much as digits as its factorization.

2200011221021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2200011221021 its reverse (1201221100022), we get a palindrome (3401232321043).

The spelling of 2200011221021 in words is "two trillion, two hundred billion, eleven million, two hundred twenty-one thousand, twenty-one".