10100001222 has 24 divisors (see below), whose sum is σ = 22474778976. Its totient is φ = 3275675856.

The previous prime is 10100001217. The next prime is 10100001227. The reversal of 10100001222 is 22210000101.

It is an interprime number because it is at equal distance from previous prime (10100001217) and next prime (10100001227).

It is a super-4 number, since 4×10100001222⁴ (a number of 41 digits) contains 4444 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100001227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7581918 + ... + 7583249.

It is an arithmetic number, because the mean of its divisors is an integer number (936449124).

Almost surely, 2^10100001222 is an apocalyptic number.

10100001222 is an abundant number, since it is smaller than the sum of its proper divisors (12374777754).

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

10100001222 is a wasteful number, since it uses less digits than its factorization.

10100001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15165212 (or 15165209 counting only the distinct ones).

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

Adding to 10100001222 its reverse (22210000101), we get a palindrome (32310001323).

The spelling of 10100001222 in words is "ten billion, one hundred million, one thousand, two hundred twenty-two".