101001222 has 32 divisors (see below), whose sum is σ = 256512000. Its totient is φ = 28857384.

The previous prime is 101001217. The next prime is 101001331. The reversal of 101001222 is 222100101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133222 + ... + 133977.

It is an arithmetic number, because the mean of its divisors is an integer number (8016000).

Almost surely, 2^101001222 is an apocalyptic number.

101001222 is an abundant number, since it is smaller than the sum of its proper divisors (155510778).

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

101001222 is a wasteful number, since it uses less digits than its factorization.

101001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267217 (or 267211 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 101001222 is about 10049.9364177093. The cubic root of 101001222 is about 465.7028289463.

Adding to 101001222 its reverse (222100101), we get a palindrome (323101323).

The spelling of 101001222 in words is "one hundred one million, one thousand, two hundred twenty-two".