101221210222 has 16 divisors (see below), whose sum is σ = 168350032944. Its totient is φ = 45255384000.

The previous prime is 101221210213. The next prime is 101221210253. The reversal of 101221210222 is 222012122101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101221210196 and 101221210205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37711479 + ... + 37714162.

It is an arithmetic number, because the mean of its divisors is an integer number (10521877059).

Almost surely, 2^101221210222 is an apocalyptic number.

101221210222 is a deficient number, since it is larger than the sum of its proper divisors (67128822722).

101221210222 is a wasteful number, since it uses less digits than its factorization.

101221210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75425715.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101221210222 its reverse (222012122101), we get a palindrome (323233332323).

The spelling of 101221210222 in words is "one hundred one billion, two hundred twenty-one million, two hundred ten thousand, two hundred twenty-two".