22220221102031 has 2 divisors, whose sum is σ = 22220221102032. Its totient is φ = 22220221102030.

The previous prime is 22220221101989. The next prime is 22220221102043. The reversal of 22220221102031 is 13020112202222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220221102031 is a prime.

It is a super-2 number, since 2×22220221102031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22220221101994 and 22220221102012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220221102831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110110551015 + 11110110551016.

It is an arithmetic number, because the mean of its divisors is an integer number (11110110551016).

Almost surely, 2^{22220221102031} is an apocalyptic number.

22220221102031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220221102031 is an equidigital number, since it uses as much as digits as its factorization.

22220221102031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22220221102031 its reverse (13020112202222), we get a palindrome (35240333304253).

The spelling of 22220221102031 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, one hundred two thousand, thirty-one".