2111222020210 has 8 divisors (see below), whose sum is σ = 3800199636396. Its totient is φ = 844488808080.

The previous prime is 2111222020199. The next prime is 2111222020223. The reversal of 2111222020210 is 120202221112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1785716398249 + 325505621961 = 1336307^2 + 570531^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105561101001 + ... + 105561101020.

Almost surely, 2^{2111222020210} is an apocalyptic number.

2111222020210 is a deficient number, since it is larger than the sum of its proper divisors (1688977616186).

2111222020210 is a wasteful number, since it uses less digits than its factorization.

2111222020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211122202028.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2111222020210 its reverse (120202221112), we get a palindrome (2231424241322).

The spelling of 2111222020210 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, twenty thousand, two hundred ten".