100022212 has 6 divisors (see below), whose sum is σ = 175038878. Its totient is φ = 50011104.

The previous prime is 100022201. The next prime is 100022227. The reversal of 100022212 is 212220001.

It can be written as a sum of positive squares in only one way, i.e., 98128836 + 1893376 = 9906^2 + 1376^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502773 + ... + 12502780.

Almost surely, 2^100022212 is an apocalyptic number.

It is an amenable number.

100022212 is a deficient number, since it is larger than the sum of its proper divisors (75016666).

100022212 is a wasteful number, since it uses less digits than its factorization.

100022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25005557 (or 25005555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 100022212 is about 10001.1105383352. The cubic root of 100022212 is about 464.1932471408.

Adding to 100022212 its reverse (212220001), we get a palindrome (312242213).

The spelling of 100022212 in words is "one hundred million, twenty-two thousand, two hundred twelve".