2101121207 has 2 divisors, whose sum is σ = 2101121208. Its totient is φ = 2101121206.

The previous prime is 2101121177. The next prime is 2101121237. The reversal of 2101121207 is 7021211012.

It is a balanced prime because it is at equal distance from previous prime (2101121177) and next prime (2101121237).

It is a cyclic number.

It is not a de Polignac number, because 2101121207 - 2¹⁴ = 2101104823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101121237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050560603 + 1050560604.

It is an arithmetic number, because the mean of its divisors is an integer number (1050560604).

Almost surely, 2^2101121207 is an apocalyptic number.

2101121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101121207 is an equidigital number, since it uses as much as digits as its factorization.

2101121207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 2101121207 is about 45837.9886884231. The cubic root of 2101121207 is about 1280.8070283005.

Adding to 2101121207 its reverse (7021211012), we get a palindrome (9122332219).

The spelling of 2101121207 in words is "two billion, one hundred one million, one hundred twenty-one thousand, two hundred seven".