11011012221012 has 36 divisors (see below), whose sum is σ = 27292578166560. Its totient is φ = 3454435205504.

The previous prime is 11011012220911. The next prime is 11011012221043. The reversal of 11011012221012 is 21012221011011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11011012220982 and 11011012221000.

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, 1587512712 + ... + 1587519647.

Almost surely, 2^{11011012221012} is an apocalyptic number.

11011012221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11011012221012 is an abundant number, since it is smaller than the sum of its proper divisors (16281565945548).

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

11011012221012 is a wasteful number, since it uses less digits than its factorization.

11011012221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175032400 (or 3175032381 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11011012221012 its reverse (21012221011011), we get a palindrome (32023233232023).

The spelling of 11011012221012 in words is "eleven trillion, eleven billion, twelve million, two hundred twenty-one thousand, twelve".