22001020220120 has 64 divisors (see below), whose sum is σ = 49715699896800. Its totient is φ = 8762550184960.

The previous prime is 22001020220099. The next prime is 22001020220129. The reversal of 22001020220120 is 2102202010022.

It is a super-2 number, since 2×22001020220120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22001020220095 and 22001020220104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001020220129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7472162 + ... + 9991758.

Almost surely, 2^{22001020220120} is an apocalyptic number.

22001020220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001020220120 is an abundant number, since it is smaller than the sum of its proper divisors (27714679676680).

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

22001020220120 is a wasteful number, since it uses less digits than its factorization.

22001020220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520548 (or 2520544 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22001020220120 its reverse (2102202010022), we get a palindrome (24103222230142).

The spelling of 22001020220120 in words is "twenty-two trillion, one billion, twenty million, two hundred twenty thousand, one hundred twenty".