11012221221210 has 160 divisors (see below), whose sum is σ = 34002648504000. Its totient is φ = 2529122538240.

The previous prime is 11012221221173. The next prime is 11012221221217. The reversal of 11012221221210 is 1212212221011.

11012221221210 is a `hidden beast` number, since 1 + 1 + 0 + 12 + 221 + 221 + 210 = 666.

11012221221210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11012221221217) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 32355435 + ... + 32694014.

It is an arithmetic number, because the mean of its divisors is an integer number (212516553150).

Almost surely, 2^{11012221221210} is an apocalyptic number.

11012221221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11012221221210 is an abundant number, since it is smaller than the sum of its proper divisors (22990427282790).

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

11012221221210 is a wasteful number, since it uses less digits than its factorization.

11012221221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65049498 (or 65049489 counting only the distinct ones).

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

Adding to 11012221221210 its reverse (1212212221011), we get a palindrome (12224433442221).

The spelling of 11012221221210 in words is "eleven trillion, twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred ten".