101221022222 has 16 divisors (see below), whose sum is σ = 152765116560. Its totient is φ = 50299531392.

The previous prime is 101221022191. The next prime is 101221022263. The reversal of 101221022222 is 222220122101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101221022222.

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 in 7 ways as a sum of consecutive naturals, for example, 917654 + ... + 1022022.

It is an arithmetic number, because the mean of its divisors is an integer number (9547819785).

Almost surely, 2^101221022222 is an apocalyptic number.

101221022222 is a deficient number, since it is larger than the sum of its proper divisors (51544094338).

101221022222 is a wasteful number, since it uses less digits than its factorization.

101221022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107347.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101221022222 its reverse (222220122101), we get a palindrome (323441144323).

The spelling of 101221022222 in words is "one hundred one billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-two".