22220021122112 has 56 divisors (see below), whose sum is σ = 48118255035840. Its totient is φ = 10096448591360.

The previous prime is 22220021122049. The next prime is 22220021122121. The reversal of 22220021122112 is 21122112002222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3565412 + ... + 7559907.

Almost surely, 2^{22220021122112} is an apocalyptic number.

22220021122112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22220021122112 is an abundant number, since it is smaller than the sum of its proper divisors (25898233913728).

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

22220021122112 is a wasteful number, since it uses less digits than its factorization.

22220021122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128179 (or 11128169 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22220021122112 its reverse (21122112002222), we get a palindrome (43342133124334).

It can be divided in two parts, 222200 and 21122112, that added together give a palindrome (21344312).

The spelling of 22220021122112 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, one hundred twenty-two thousand, one hundred twelve".