22120212020221 has 16 divisors (see below), whose sum is σ = 25723971318400. Its totient is φ = 18628093817280.

The previous prime is 22120212020201. The next prime is 22120212020243. The reversal of 22120212020221 is 12202021202122.

It is a cyclic number.

It is not a de Polignac number, because 22120212020221 - 2¹⁹ = 22120211495933 is a prime.

It is a super-2 number, since 2×22120212020221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120212020201) 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, 29160171 + ... + 29909128.

It is an arithmetic number, because the mean of its divisors is an integer number (1607748207400).

Almost surely, 2^{22120212020221} is an apocalyptic number.

It is an amenable number.

22120212020221 is a deficient number, since it is larger than the sum of its proper divisors (3603759298179).

22120212020221 is an equidigital number, since it uses as much as digits as its factorization.

22120212020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59070244.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22120212020221 its reverse (12202021202122), we get a palindrome (34322233222343).

The spelling of 22120212020221 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, twenty thousand, two hundred twenty-one".