1202211202221 has 32 divisors (see below), whose sum is σ = 1896240528000. Its totient is φ = 750160984320.

The previous prime is 1202211202217. The next prime is 1202211202229. The reversal of 1202211202221 is 1222021122021.

It is a happy number.

1202211202221 is a `hidden beast` number, since 1 + 20 + 221 + 1 + 202 + 221 = 666.

It is not a de Polignac number, because 1202211202221 - 2² = 1202211202217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202211202194 and 1202211202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202211202229) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7152271 + ... + 7318428.

It is an arithmetic number, because the mean of its divisors is an integer number (59257516500).

Almost surely, 2^{1202211202221} is an apocalyptic number.

It is an amenable number.

1202211202221 is a deficient number, since it is larger than the sum of its proper divisors (694029325779).

1202211202221 is a wasteful number, since it uses less digits than its factorization.

1202211202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14470906 (or 14470900 counting only the distinct ones).

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

Adding to 1202211202221 its reverse (1222021122021), we get a palindrome (2424232324242).

The spelling of 1202211202221 in words is "one trillion, two hundred two billion, two hundred eleven million, two hundred two thousand, two hundred twenty-one".