101031213222 has 64 divisors (see below), whose sum is σ = 228004450560. Its totient is φ = 33157346112.

The previous prime is 101031213193. The next prime is 101031213293. The reversal of 101031213222 is 222312130101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101031213195 and 101031213204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 888178 + ... + 995450.

It is an arithmetic number, because the mean of its divisors is an integer number (3562569540).

Almost surely, 2^101031213222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101031213222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114002225280).

101031213222 is an abundant number, since it is smaller than the sum of its proper divisors (126973237338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101031213222 is a wasteful number, since it uses less digits than its factorization.

101031213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107554 (or 107548 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 101031213222 its reverse (222312130101), we get a palindrome (323343343323).

The spelling of 101031213222 in words is "one hundred one billion, thirty-one million, two hundred thirteen thousand, two hundred twenty-two".