11021110010988 has 96 divisors (see below), whose sum is σ = 32077849509888. Its totient is φ = 2861158248000.

The previous prime is 11021110010863. The next prime is 11021110011019. The reversal of 11021110010988 is 88901001112011.

It is a happy number.

It is a super-2 number, since 2×11021110010988² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1254070 + ... + 4859517.

It is an arithmetic number, because the mean of its divisors is an integer number (334144265728).

Almost surely, 2^{11021110010988} is an apocalyptic number.

It is an amenable number.

11021110010988 is an abundant number, since it is smaller than the sum of its proper divisors (21056739498900).

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

11021110010988 is a wasteful number, since it uses less digits than its factorization.

11021110010988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6115563 (or 6115561 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 33.

Adding to 11021110010988 its reverse (88901001112011), we get a palindrome (99922111122999).

The spelling of 11021110010988 in words is "eleven trillion, twenty-one billion, one hundred ten million, ten thousand, nine hundred eighty-eight".