11021212021110 has 32 divisors (see below), whose sum is σ = 26485305406560. Its totient is φ = 2935168032768.

The previous prime is 11021212021103. The next prime is 11021212021123. The reversal of 11021212021110 is 1112021212011.

It is a happy number.

It is a super-2 number, since 2×11021212021110² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11021212021110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238841517 + ... + 238887656.

It is an arithmetic number, because the mean of its divisors is an integer number (827665793955).

Almost surely, 2^{11021212021110} is an apocalyptic number.

11021212021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11021212021110 is an abundant number, since it is smaller than the sum of its proper divisors (15464093385450).

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

11021212021110 is a wasteful number, since it uses less digits than its factorization.

11021212021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477729952.

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

Adding to 11021212021110 its reverse (1112021212011), we get a palindrome (12133233233121).

The spelling of 11021212021110 in words is "eleven trillion, twenty-one billion, two hundred twelve million, twenty-one thousand, one hundred ten".