2186029121 has 2 divisors, whose sum is σ = 2186029122. Its totient is φ = 2186029120.

The previous prime is 2186029093. The next prime is 2186029169. The reversal of 2186029121 is 1219206812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1715616400 + 470412721 = 41420^2 + 21689^2 .

It is a cyclic number.

It is not a de Polignac number, because 2186029121 - 2⁶ = 2186029057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2186029171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1093014560 + 1093014561.

It is an arithmetic number, because the mean of its divisors is an integer number (1093014561).

Almost surely, 2^2186029121 is an apocalyptic number.

It is an amenable number.

2186029121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2186029121 is an equidigital number, since it uses as much as digits as its factorization.

2186029121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 2186029121 is about 46754.9903325838. The cubic root of 2186029121 is about 1297.8325066818.

The spelling of 2186029121 in words is "two billion, one hundred eighty-six million, twenty-nine thousand, one hundred twenty-one".