221211234422102 has 4 divisors (see below), whose sum is σ = 331816851633156. Its totient is φ = 110605617211050.

The previous prime is 221211234422039. The next prime is 221211234422119. The reversal of 221211234422102 is 201224432112122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55302808605524 + ... + 55302808605527.

It is an arithmetic number, because the mean of its divisors is an integer number (82954212908289).

Almost surely, 2^{221211234422102} is an apocalyptic number.

221211234422102 is a deficient number, since it is larger than the sum of its proper divisors (110605617211054).

221211234422102 is a wasteful number, since it uses less digits than its factorization.

221211234422102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605617211053.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 221211234422102 its reverse (201224432112122), we get a palindrome (422435666534224).

The spelling of 221211234422102 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred thirty-four million, four hundred twenty-two thousand, one hundred two".