20010222000961 has 2 divisors, whose sum is σ = 20010222000962. Its totient is φ = 20010222000960.

The previous prime is 20010222000947. The next prime is 20010222001031. The reversal of 20010222000961 is 16900022201002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19979961311025 + 30260689936 = 4469895^2 + 173956^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010222000961 - 2⁷ = 20010222000833 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010222000661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005111000480 + 10005111000481.

It is an arithmetic number, because the mean of its divisors is an integer number (10005111000481).

Almost surely, 2^{20010222000961} is an apocalyptic number.

It is an amenable number.

20010222000961 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010222000961 is an equidigital number, since it uses as much as digits as its factorization.

20010222000961 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 25.

Adding to 20010222000961 its reverse (16900022201002), we get a palindrome (36910244201963).

The spelling of 20010222000961 in words is "twenty trillion, ten billion, two hundred twenty-two million, nine hundred sixty-one", and thus it is an aban number.