220021223020044 has 72 divisors (see below), whose sum is σ = 574061322663360. Its totient is φ = 65393304655104.

The previous prime is 220021223020043. The next prime is 220021223020057. The reversal of 220021223020044 is 440020322120022.

220021223020044 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220021223019996 and 220021223020023.

It is not an unprimeable number, because it can be changed into a prime (220021223020043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1669493562 + ... + 1669625345.

It is an arithmetic number, because the mean of its divisors is an integer number (7973073925880).

Almost surely, 2^{220021223020044} is an apocalyptic number.

It is an amenable number.

220021223020044 is an abundant number, since it is smaller than the sum of its proper divisors (354040099643316).

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

220021223020044 is a wasteful number, since it uses less digits than its factorization.

220021223020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339118967 (or 3339118948 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 220021223020044 its reverse (440020322120022), we get a palindrome (660041545140066).

The spelling of 220021223020044 in words is "two hundred twenty trillion, twenty-one billion, two hundred twenty-three million, twenty thousand, forty-four".