2210102002021 has 8 divisors (see below), whose sum is σ = 2246409947000. Its totient is φ = 2173796533440.

The previous prime is 2210102001971. The next prime is 2210102002033. The reversal of 2210102002021 is 1202002010122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7415620996 + 2202686381025 = 86114^2 + 1484145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2210102002021 - 2¹⁵ = 2210101969253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210102001992 and 2210102002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210102302021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225255 + ... + 2433403.

It is an arithmetic number, because the mean of its divisors is an integer number (280801243375).

Almost surely, 2^{2210102002021} is an apocalyptic number.

It is an amenable number.

2210102002021 is a deficient number, since it is larger than the sum of its proper divisors (36307944979).

2210102002021 is a wasteful number, since it uses less digits than its factorization.

2210102002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238199.

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

Adding to 2210102002021 its reverse (1202002010122), we get a palindrome (3412104012143).

The spelling of 2210102002021 in words is "two trillion, two hundred ten billion, one hundred two million, two thousand, twenty-one".