11012212221021 has 48 divisors (see below), whose sum is σ = 17914353100800. Its totient is φ = 6458048676000.

The previous prime is 11012212220927. The next prime is 11012212221029. The reversal of 11012212221021 is 12012221221011.

It is not a de Polignac number, because 11012212221021 - 2²⁵ = 11012178666589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012212220985 and 11012212221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012212221029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27702930 + ... + 28097628.

It is an arithmetic number, because the mean of its divisors is an integer number (373215689600).

Almost surely, 2^{11012212221021} is an apocalyptic number.

11012212221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012212221021 is a deficient number, since it is larger than the sum of its proper divisors (6902140879779).

11012212221021 is a wasteful number, since it uses less digits than its factorization.

11012212221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403838 (or 403835 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11012212221021 its reverse (12012221221011), we get a palindrome (23024433442032).

It can be divided in two parts, 1101 and 2212221021, that added together give a palindrome (2212222122).

The spelling of 11012212221021 in words is "eleven trillion, twelve billion, two hundred twelve million, two hundred twenty-one thousand, twenty-one".