1111021000002 has 40 divisors (see below), whose sum is σ = 2495286300672. Its totient is φ = 369481051800.

The previous prime is 1111020999971. The next prime is 1111021000049. The reversal of 1111021000002 is 2000001201111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7886274 + ... + 8025917.

Almost surely, 2^{1111021000002} is an apocalyptic number.

1111021000002 is an abundant number, since it is smaller than the sum of its proper divisors (1384265300670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111021000002 is a wasteful number, since it uses less digits than its factorization.

1111021000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912636 (or 15912627 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1111021000002 its reverse (2000001201111), we get a palindrome (3111022201113).

The spelling of 1111021000002 in words is "one trillion, one hundred eleven billion, twenty-one million, two", and thus it is an aban number.