1722421012 has 48 divisors (see below), whose sum is σ = 3384057600. Its totient is φ = 761604480.

The previous prime is 1722421009. The next prime is 1722421037. The reversal of 1722421012 is 2101242271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193189 + ... + 201907.

It is an arithmetic number, because the mean of its divisors is an integer number (70501200).

Almost surely, 2^1722421012 is an apocalyptic number.

It is an amenable number.

1722421012 is a deficient number, since it is larger than the sum of its proper divisors (1661636588).

1722421012 is a wasteful number, since it uses less digits than its factorization.

1722421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8896 (or 8894 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1722421012 is about 41502.0603343979. The cubic root of 1722421012 is about 1198.7071752629.

Adding to 1722421012 its reverse (2101242271), we get a palindrome (3823663283).

The spelling of 1722421012 in words is "one billion, seven hundred twenty-two million, four hundred twenty-one thousand, twelve".