20221220011193 has 4 divisors (see below), whose sum is σ = 20221835737488. Its totient is φ = 20220604284900.

The previous prime is 20221220011177. The next prime is 20221220011211. The reversal of 20221220011193 is 39111002212202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20221220011193 - 2⁴ = 20221220011177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221220011393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307813883 + ... + 307879568.

It is an arithmetic number, because the mean of its divisors is an integer number (5055458934372).

Almost surely, 2^{20221220011193} is an apocalyptic number.

It is an amenable number.

20221220011193 is a deficient number, since it is larger than the sum of its proper divisors (615726295).

20221220011193 is an equidigital number, since it uses as much as digits as its factorization.

20221220011193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615726294.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 20221220011193 its reverse (39111002212202), we get a palindrome (59332222223395).

The spelling of 20221220011193 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, eleven thousand, one hundred ninety-three".