1021734212 has 12 divisors (see below), whose sum is σ = 1821771756. Its totient is φ = 501228000.

The previous prime is 1021734199. The next prime is 1021734229. The reversal of 1021734212 is 2124371201.

It can be written as a sum of positive squares in 2 ways, for example, as 284394496 + 737339716 = 16864^2 + 27154^2 .

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, 2409539 + ... + 2409962.

It is an arithmetic number, because the mean of its divisors is an integer number (151814313).

Almost surely, 2^1021734212 is an apocalyptic number.

It is an amenable number.

1021734212 is a deficient number, since it is larger than the sum of its proper divisors (800037544).

1021734212 is a wasteful number, since it uses less digits than its factorization.

1021734212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819558 (or 4819556 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1021734212 is about 31964.5774569288. The cubic root of 1021734212 is about 1007.1928758237.

The spelling of 1021734212 in words is "one billion, twenty-one million, seven hundred thirty-four thousand, two hundred twelve".