101212221022 has 16 divisors (see below), whose sum is σ = 165703170672. Its totient is φ = 45982451520.

The previous prime is 101212220939. The next prime is 101212221043. The reversal of 101212221022 is 220122212101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101212220987 and 101212221005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110333 + ... + 1198024.

It is an arithmetic number, because the mean of its divisors is an integer number (10356448167).

Almost surely, 2^101212221022 is an apocalyptic number.

101212221022 is a deficient number, since it is larger than the sum of its proper divisors (64490949650).

101212221022 is a wasteful number, since it uses less digits than its factorization.

101212221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310363.

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

Adding to 101212221022 its reverse (220122212101), we get a palindrome (321334433123).

The spelling of 101212221022 in words is "one hundred one billion, two hundred twelve million, two hundred twenty-one thousand, twenty-two".