1002121012 has 12 divisors (see below), whose sum is σ = 1755848416. Its totient is φ = 500450040.

The previous prime is 1002121007. The next prime is 1002121031. The reversal of 1002121012 is 2101212001.

It is a self number, because there is not a number n which added to its sum of digits gives 1002121012.

It is a congruent number.

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, 148914 + ... + 155497.

Almost surely, 2^1002121012 is an apocalyptic number.

It is an amenable number.

1002121012 is a deficient number, since it is larger than the sum of its proper divisors (753727404).

1002121012 is a wasteful number, since it uses less digits than its factorization.

1002121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305238 (or 305236 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1002121012 is about 31656.2949821990. The cubic root of 1002121012 is about 1000.7065047335.

Adding to 1002121012 its reverse (2101212001), we get a palindrome (3103333013).

The spelling of 1002121012 in words is "one billion, two million, one hundred twenty-one thousand, twelve".