11020002012 has 36 divisors (see below), whose sum is σ = 28022934576. Its totient is φ = 3651336000.

The previous prime is 11020001959. The next prime is 11020002023. The reversal of 11020002012 is 21020002011.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 11020001985 and 11020002003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 910489 + ... + 922512.

Almost surely, 2^11020002012 is an apocalyptic number.

11020002012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11020002012 is an abundant number, since it is smaller than the sum of its proper divisors (17002932564).

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

11020002012 is a wasteful number, since it uses less digits than its factorization.

11020002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833178 (or 1833173 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11020002012 its reverse (21020002011), we get a palindrome (32040004023).

Subtracting 11020002012 from its reverse (21020002011), we obtain a palindrome (9999999999).

The spelling of 11020002012 in words is "eleven billion, twenty million, two thousand, twelve".