221102021211022 has 64 divisors (see below), whose sum is σ = 384715116656640. Its totient is φ = 93346488400896.

The previous prime is 221102021210971. The next prime is 221102021211077. The reversal of 221102021211022 is 220112120201122.

It is a super-2 number, since 2×221102021211022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1375710804 + ... + 1375871512.

It is an arithmetic number, because the mean of its divisors is an integer number (6011173697760).

Almost surely, 2^{221102021211022} is an apocalyptic number.

221102021211022 is a deficient number, since it is larger than the sum of its proper divisors (163613095445618).

221102021211022 is a wasteful number, since it uses less digits than its factorization.

221102021211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165505.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221102021211022 its reverse (220112120201122), we get a palindrome (441214141412144).

The spelling of 221102021211022 in words is "two hundred twenty-one trillion, one hundred two billion, twenty-one million, two hundred eleven thousand, twenty-two".