22120201202021 has 12 divisors (see below), whose sum is σ = 24003934448832. Its totient is φ = 20374924177296.

The previous prime is 22120201201957. The next prime is 22120201202023. The reversal of 22120201202021 is 12020210202122.

It is a happy number.

It is not a de Polignac number, because 22120201202021 - 2⁶ = 22120201201957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120201202023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140058941 + ... + 140216786.

It is an arithmetic number, because the mean of its divisors is an integer number (2000327870736).

Almost surely, 2^{22120201202021} is an apocalyptic number.

It is an amenable number.

22120201202021 is a deficient number, since it is larger than the sum of its proper divisors (1883733246811).

22120201202021 is a wasteful number, since it uses less digits than its factorization.

22120201202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280276220 (or 280276207 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22120201202021 its reverse (12020210202122), we get a palindrome (34140411404143).

The spelling of 22120201202021 in words is "twenty-two trillion, one hundred twenty billion, two hundred one million, two hundred two thousand, twenty-one".