20123210022211 has 2 divisors, whose sum is σ = 20123210022212. Its totient is φ = 20123210022210.

The previous prime is 20123210022203. The next prime is 20123210022257. The reversal of 20123210022211 is 11222001232102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20123210022211 - 2³ = 20123210022203 is a prime.

It is a super-2 number, since 2×20123210022211² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20123210022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061605011105 + 10061605011106.

It is an arithmetic number, because the mean of its divisors is an integer number (10061605011106).

Almost surely, 2^{20123210022211} is an apocalyptic number.

20123210022211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123210022211 is an equidigital number, since it uses as much as digits as its factorization.

20123210022211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20123210022211 its reverse (11222001232102), we get a palindrome (31345211254313).

The spelling of 20123210022211 in words is "twenty trillion, one hundred twenty-three billion, two hundred ten million, twenty-two thousand, two hundred eleven".