101222212 has 36 divisors (see below), whose sum is σ = 219225216. Its totient is φ = 40042080.

The previous prime is 101222201. The next prime is 101222213. The reversal of 101222212 is 212222101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 101222192 and 101222201.

It is not an unprimeable number, because it can be changed into a prime (101222213) 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, 5964 + ... + 15427.

Almost surely, 2^101222212 is an apocalyptic number.

It is an amenable number.

101222212 is an abundant number, since it is smaller than the sum of its proper divisors (118003004).

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

101222212 is a wasteful number, since it uses less digits than its factorization.

101222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21428 (or 21413 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 101222212 is about 10060.9250071750. The cubic root of 101222212 is about 466.0422330896.

Adding to 101222212 its reverse (212222101), we get a palindrome (313444313).

The spelling of 101222212 in words is "one hundred one million, two hundred twenty-two thousand, two hundred twelve".