11012212221012 has 36 divisors (see below), whose sum is σ = 27855348941056. Its totient is φ = 3668241986640.

The previous prime is 11012212220927. The next prime is 11012212221029. The reversal of 11012212221012 is 21012221221011.

It is a tau number, because it is divible by the number of its divisors (36).

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

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, 103922158 + ... + 104028069.

Almost surely, 2^{11012212221012} is an apocalyptic number.

11012212221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11012212221012 is an abundant number, since it is smaller than the sum of its proper divisors (16843136720044).

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

11012212221012 is a wasteful number, since it uses less digits than its factorization.

11012212221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207951708 (or 207951703 counting only the distinct ones).

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

Adding to 11012212221012 its reverse (21012221221011), we get a palindrome (32024433442023).

It can be divided in two parts, 1101221 and 2221012, that added together give a palindrome (3322233).

The spelling of 11012212221012 in words is "eleven trillion, twelve billion, two hundred twelve million, two hundred twenty-one thousand, twelve".