22022120020121 has 16 divisors (see below), whose sum is σ = 25921234257408. Its totient is φ = 18515167315200.

The previous prime is 22022120020091. The next prime is 22022120020171. The reversal of 22022120020121 is 12102002122022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22022120020121 - 2¹⁸ = 22022119757977 is a prime.

It is a super-2 number, since 2×22022120020121² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22022120020121.

It is not an unprimeable number, because it can be changed into a prime (22022120020171) 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, 1607212535 + ... + 1607226236.

It is an arithmetic number, because the mean of its divisors is an integer number (1620077141088).

Almost surely, 2^{22022120020121} is an apocalyptic number.

It is an amenable number.

22022120020121 is a deficient number, since it is larger than the sum of its proper divisors (3899114237287).

22022120020121 is a wasteful number, since it uses less digits than its factorization.

22022120020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214438832.

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

Adding to 22022120020121 its reverse (12102002122022), we get a palindrome (34124122142143).

The spelling of 22022120020121 in words is "twenty-two trillion, twenty-two billion, one hundred twenty million, twenty thousand, one hundred twenty-one".