11022220212012 has 72 divisors (see below), whose sum is σ = 27881664313776. Its totient is φ = 3671444496384.

The previous prime is 11022220212007. The next prime is 11022220212049. The reversal of 11022220212012 is 21021202222011.

It is a happy number.

11022220212012 is a `hidden beast` number, since 110 + 222 + 202 + 120 + 12 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 773862163 + ... + 773876405.

Almost surely, 2^{11022220212012} is an apocalyptic number.

11022220212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11022220212012 is an abundant number, since it is smaller than the sum of its proper divisors (16859444101764).

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

11022220212012 is a wasteful number, since it uses less digits than its factorization.

11022220212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28127 (or 28122 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11022220212012 its reverse (21021202222011), we get a palindrome (32043422434023).

The spelling of 11022220212012 in words is "eleven trillion, twenty-two billion, two hundred twenty million, two hundred twelve thousand, twelve".