101220212222 has 4 divisors (see below), whose sum is σ = 151830318336. Its totient is φ = 50610106110.

The previous prime is 101220212213. The next prime is 101220212251. The reversal of 101220212222 is 222212022101.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 101220212222.

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 as a sum of consecutive naturals, namely, 25305053054 + ... + 25305053057.

It is an arithmetic number, because the mean of its divisors is an integer number (37957579584).

Almost surely, 2^101220212222 is an apocalyptic number.

101220212222 is a deficient number, since it is larger than the sum of its proper divisors (50610106114).

101220212222 is an equidigital number, since it uses as much as digits as its factorization.

101220212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50610106113.

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

Adding to 101220212222 its reverse (222212022101), we get a palindrome (323432234323).

The spelling of 101220212222 in words is "one hundred one billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty-two".