1102212 has 36 divisors (see below), whose sum is σ = 2951676. Its totient is φ = 345600.

The previous prime is 1102201. The next prime is 1102237. The reversal of 1102212 is 2122011.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 617796 = 696^2 + 786^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1102194 and 1102203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289 + ... + 1512.

It is an arithmetic number, because the mean of its divisors is an integer number (81991).

2^1102212 is an apocalyptic number.

1102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1102212 is an abundant number, since it is smaller than the sum of its proper divisors (1849464).

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

1102212 is a wasteful number, since it uses less digits than its factorization.

1102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828 (or 1823 counting only the distinct ones).

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

The square root of 1102212 is about 1049.8628481854. The cubic root of 1102212 is about 103.2971592654.

Adding to 1102212 its reverse (2122011), we get a palindrome (3224223).

The spelling of 1102212 in words is "one million, one hundred two thousand, two hundred twelve".