101022212 has 6 divisors (see below), whose sum is σ = 176788878. Its totient is φ = 50511104.

The previous prime is 101022203. The next prime is 101022253. The reversal of 101022212 is 212220101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100681156 + 341056 = 10034^2 + 584^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101022193 and 101022202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627773 + ... + 12627780.

It is an arithmetic number, because the mean of its divisors is an integer number (29464813).

Almost surely, 2^101022212 is an apocalyptic number.

It is an amenable number.

101022212 is a deficient number, since it is larger than the sum of its proper divisors (75766666).

101022212 is a wasteful number, since it uses less digits than its factorization.

101022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255557 (or 25255555 counting only the distinct ones).

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

The square root of 101022212 is about 10050.9806486730. The cubic root of 101022212 is about 465.7350873854.

Adding to 101022212 its reverse (212220101), we get a palindrome (313242313).

The spelling of 101022212 in words is "one hundred one million, twenty-two thousand, two hundred twelve".