1022002012 has 24 divisors (see below), whose sum is σ = 1867990320. Its totient is φ = 488759040.

The previous prime is 1022001989. The next prime is 1022002031. The reversal of 1022002012 is 2102002201.

It is a super-2 number, since 2×1022002012² = 2088976225064096288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49789 + ... + 67252.

It is an arithmetic number, because the mean of its divisors is an integer number (77832930).

Almost surely, 2^1022002012 is an apocalyptic number.

It is an amenable number.

1022002012 is a deficient number, since it is larger than the sum of its proper divisors (845988308).

1022002012 is a wasteful number, since it uses less digits than its factorization.

1022002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117141 (or 117139 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1022002012 is about 31968.7661945218. The cubic root of 1022002012 is about 1007.2808643589.

Adding to 1022002012 its reverse (2102002201), we get a palindrome (3124004213).

The spelling of 1022002012 in words is "one billion, twenty-two million, two thousand, twelve".