101222120 has 32 divisors (see below), whose sum is σ = 239738400. Its totient is φ = 38357568.

The previous prime is 101222113. The next prime is 101222137. The reversal of 101222120 is 21222101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65834 + ... + 67353.

It is an arithmetic number, because the mean of its divisors is an integer number (7491825).

Almost surely, 2^101222120 is an apocalyptic number.

101222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222120 is an abundant number, since it is smaller than the sum of its proper divisors (138516280).

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

101222120 is a wasteful number, since it uses less digits than its factorization.

101222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133217 (or 133213 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 101222120 is about 10060.9204350298. The cubic root of 101222120 is about 466.0420918956.

Adding to 101222120 its reverse (21222101), we get a palindrome (122444221).

It can be divided in two parts, 1012 and 22120, that added together give a palindrome (23132).

The spelling of 101222120 in words is "one hundred one million, two hundred twenty-two thousand, one hundred twenty".