1200102212 has 12 divisors (see below), whose sum is σ = 2102219196. Its totient is φ = 599468160.

The previous prime is 1200102203. The next prime is 1200102221. The reversal of 1200102212 is 2122010021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1200102203) and next prime (1200102221).

It can be written as a sum of positive squares in 2 ways, for example, as 710542336 + 489559876 = 26656^2 + 22126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1200102193 and 1200102202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141089 + ... + 149352.

It is an arithmetic number, because the mean of its divisors is an integer number (175184933).

Almost surely, 2^1200102212 is an apocalyptic number.

It is an amenable number.

1200102212 is a deficient number, since it is larger than the sum of its proper divisors (902116984).

1200102212 is a wasteful number, since it uses less digits than its factorization.

1200102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291478 (or 291476 counting only the distinct ones).

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

The square root of 1200102212 is about 34642.4914231064. The cubic root of 1200102212 is about 1062.6887395643.

Adding to 1200102212 its reverse (2122010021), we get a palindrome (3322112233).

The spelling of 1200102212 in words is "one billion, two hundred million, one hundred two thousand, two hundred twelve".