22110201021121 has 2 divisors, whose sum is σ = 22110201021122. Its totient is φ = 22110201021120.

The previous prime is 22110201021107. The next prime is 22110201021131. The reversal of 22110201021121 is 12112010201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12671542403521 + 9438658617600 = 3559711^2 + 3072240^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110201021121 - 2¹³ = 22110201012929 is a prime.

It is a super-2 number, since 2×22110201021121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22110201021095 and 22110201021104.

It is not a weakly prime, because it can be changed into another prime (22110201021131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055100510560 + 11055100510561.

It is an arithmetic number, because the mean of its divisors is an integer number (11055100510561).

Almost surely, 2^{22110201021121} is an apocalyptic number.

It is an amenable number.

22110201021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110201021121 is an equidigital number, since it uses as much as digits as its factorization.

22110201021121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22110201021121 its reverse (12112010201122), we get a palindrome (34222211222243).

The spelling of 22110201021121 in words is "twenty-two trillion, one hundred ten billion, two hundred one million, twenty-one thousand, one hundred twenty-one".