2210120109961 has 2 divisors, whose sum is σ = 2210120109962. Its totient is φ = 2210120109960.

The previous prime is 2210120109937. The next prime is 2210120110013. The reversal of 2210120109961 is 1699010210122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1802725134336 + 407394975625 = 1342656^2 + 638275^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210120109961 - 2⁵ = 2210120109929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210120109761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105060054980 + 1105060054981.

It is an arithmetic number, because the mean of its divisors is an integer number (1105060054981).

Almost surely, 2^{2210120109961} is an apocalyptic number.

It is an amenable number.

2210120109961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210120109961 is an equidigital number, since it uses as much as digits as its factorization.

2210120109961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 2210120109961 in words is "two trillion, two hundred ten billion, one hundred twenty million, one hundred nine thousand, nine hundred sixty-one".