101220211222 has 16 divisors (see below), whose sum is σ = 172115339760. Its totient is φ = 44258229792.

The previous prime is 101220211121. The next prime is 101220211223. The reversal of 101220211222 is 222112022101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101220211196 and 101220211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220211223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102449113 + ... + 102450100.

It is an arithmetic number, because the mean of its divisors is an integer number (10757208735).

Almost surely, 2^101220211222 is an apocalyptic number.

101220211222 is a deficient number, since it is larger than the sum of its proper divisors (70895128538).

101220211222 is a wasteful number, since it uses less digits than its factorization.

101220211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204899247.

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

Adding to 101220211222 its reverse (222112022101), we get a palindrome (323332233323).

The spelling of 101220211222 in words is "one hundred one billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-two".