22001120020000 has 120 divisors (see below), whose sum is σ = 59046606500112. Its totient is φ = 8000407200000.

The previous prime is 22001120019947. The next prime is 22001120020007. The reversal of 22001120020000 is 2002110022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (22001120020007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49782546 + ... + 50222545.

Almost surely, 2^{22001120020000} is an apocalyptic number.

22001120020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001120020000 is an abundant number, since it is smaller than the sum of its proper divisors (37045486480112).

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

22001120020000 is a wasteful number, since it uses less digits than its factorization.

22001120020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100005132 (or 100005109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22001120020000 its reverse (2002110022), we get a palindrome (22003122130022).

The spelling of 22001120020000 in words is "twenty-two trillion, one billion, one hundred twenty million, twenty thousand".