1021122212 has 12 divisors (see below), whose sum is σ = 1949415216. Its totient is φ = 464146440.

The previous prime is 1021122209. The next prime is 1021122251. The reversal of 1021122212 is 2122211201.

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, 11603618 + ... + 11603705.

It is an arithmetic number, because the mean of its divisors is an integer number (162451268).

Almost surely, 2^1021122212 is an apocalyptic number.

It is an amenable number.

1021122212 is a deficient number, since it is larger than the sum of its proper divisors (928293004).

1021122212 is a wasteful number, since it uses less digits than its factorization.

1021122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23207338 (or 23207336 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1021122212 is about 31955.0029259895. The cubic root of 1021122212 is about 1006.9917389902.

Adding to 1021122212 its reverse (2122211201), we get a palindrome (3143333413).

It can be divided in two parts, 10211 and 22212, that added together give a palindrome (32423).

The spelling of 1021122212 in words is "one billion, twenty-one million, one hundred twenty-two thousand, two hundred twelve".