2202101102021 has 4 divisors (see below), whose sum is σ = 2210050925772. Its totient is φ = 2194151278272.

The previous prime is 2202101101961. The next prime is 2202101102059. The reversal of 2202101102021 is 1202011012022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1259815432225 + 942285669796 = 1122415^2 + 970714^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202101102021 - 2⁶ = 2202101101957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202101101987 and 2202101102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202101102081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3974911460 + ... + 3974912013.

It is an arithmetic number, because the mean of its divisors is an integer number (552512731443).

Almost surely, 2^{2202101102021} is an apocalyptic number.

It is an amenable number.

2202101102021 is a deficient number, since it is larger than the sum of its proper divisors (7949823751).

2202101102021 is an equidigital number, since it uses as much as digits as its factorization.

2202101102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949823750.

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

Adding to 2202101102021 its reverse (1202011012022), we get a palindrome (3404112114043).

It can be divided in two parts, 220210 and 1102021, that added together give a palindrome (1322231).

The spelling of 2202101102021 in words is "two trillion, two hundred two billion, one hundred one million, one hundred two thousand, twenty-one".