20221220093 has 2 divisors, whose sum is σ = 20221220094. Its totient is φ = 20221220092.

The previous prime is 20221220023. The next prime is 20221220143. The reversal of 20221220093 is 39002212202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19416192964 + 805027129 = 139342^2 + 28373^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221220093 - 2²⁴ = 20204442877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221220023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110610046 + 10110610047.

It is an arithmetic number, because the mean of its divisors is an integer number (10110610047).

Almost surely, 2^20221220093 is an apocalyptic number.

It is an amenable number.

20221220093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221220093 is an equidigital number, since it uses as much as digits as its factorization.

20221220093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20221220093 its reverse (39002212202), we get a palindrome (59223432295).

The spelling of 20221220093 in words is "twenty billion, two hundred twenty-one million, two hundred twenty thousand, ninety-three".