22020121122021 has 96 divisors (see below), whose sum is σ = 36759771734400. Its totient is φ = 12575351093760.

The previous prime is 22020121121987. The next prime is 22020121122031. The reversal of 22020121122021 is 12022112102022.

It is a happy number.

22020121122021 is a `hidden beast` number, since 220 + 201 + 2 + 1 + 1 + 220 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-22020121122021 is a prime.

It is a super-3 number, since 3×22020121122021³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 22020121121985 and 22020121122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020121122031) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 151651171 + ... + 151796303.

It is an arithmetic number, because the mean of its divisors is an integer number (382914288900).

Almost surely, 2^{22020121122021} is an apocalyptic number.

It is an amenable number.

22020121122021 is a deficient number, since it is larger than the sum of its proper divisors (14739650612379).

22020121122021 is a wasteful number, since it uses less digits than its factorization.

22020121122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146451 (or 146448 counting only the distinct ones).

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

Adding to 22020121122021 its reverse (12022112102022), we get a palindrome (34042233224043).

The spelling of 22020121122021 in words is "twenty-two trillion, twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty-one".