2201100212021 has 2 divisors, whose sum is σ = 2201100212022. Its totient is φ = 2201100212020.

The previous prime is 2201100211957. The next prime is 2201100212063. The reversal of 2201100212021 is 1202120011022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1906500939121 + 294599272900 = 1380761^2 + 542770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201100212021 - 2⁶ = 2201100211957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201100211987 and 2201100212005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201100211021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100550106010 + 1100550106011.

It is an arithmetic number, because the mean of its divisors is an integer number (1100550106011).

Almost surely, 2^{2201100212021} is an apocalyptic number.

It is an amenable number.

2201100212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201100212021 is an equidigital number, since it uses as much as digits as its factorization.

2201100212021 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 2201100212021 its reverse (1202120011022), we get a palindrome (3403220223043).

The spelling of 2201100212021 in words is "two trillion, two hundred one billion, one hundred million, two hundred twelve thousand, twenty-one".