2221202211210 has 24 divisors (see below), whose sum is σ = 5775125749380. Its totient is φ = 592320589632.

The previous prime is 2221202211169. The next prime is 2221202211307. The reversal of 2221202211210 is 121122021222.

It is a happy number.

2221202211210 is a `hidden beast` number, since 2 + 221 + 20 + 2 + 211 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1992357657081 + 228844554129 = 1411509^2 + 478377^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12340012195 + ... + 12340012374.

Almost surely, 2^{2221202211210} is an apocalyptic number.

2221202211210 is an abundant number, since it is smaller than the sum of its proper divisors (3553923538170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221202211210 is a wasteful number, since it uses less digits than its factorization.

2221202211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24680024582 (or 24680024579 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221202211210 its reverse (121122021222), we get a palindrome (2342324232432).

The spelling of 2221202211210 in words is "two trillion, two hundred twenty-one billion, two hundred two million, two hundred eleven thousand, two hundred ten".