20021222321141 has 2 divisors, whose sum is σ = 20021222321142. Its totient is φ = 20021222321140.

The previous prime is 20021222321059. The next prime is 20021222321171. The reversal of 20021222321141 is 14112322212002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17454430622500 + 2566791698641 = 4177850^2 + 1602121^2 .

It is a cyclic number.

It is not a de Polignac number, because 20021222321141 - 2³⁸ = 19746344414197 is a prime.

It is a super-2 number, since 2×20021222321141² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021222321171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010611160570 + 10010611160571.

It is an arithmetic number, because the mean of its divisors is an integer number (10010611160571).

Almost surely, 2^{20021222321141} is an apocalyptic number.

It is an amenable number.

20021222321141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021222321141 is an equidigital number, since it uses as much as digits as its factorization.

20021222321141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20021222321141 its reverse (14112322212002), we get a palindrome (34133544533143).

The spelling of 20021222321141 in words is "twenty trillion, twenty-one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred forty-one".