2121100951 has 2 divisors, whose sum is σ = 2121100952. Its totient is φ = 2121100950.

The previous prime is 2121100937. The next prime is 2121100957. The reversal of 2121100951 is 1590011212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121100951 - 2⁷ = 2121100823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121100957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060550475 + 1060550476.

It is an arithmetic number, because the mean of its divisors is an integer number (1060550476).

Almost surely, 2^2121100951 is an apocalyptic number.

2121100951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121100951 is an equidigital number, since it uses as much as digits as its factorization.

2121100951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 2121100951 is about 46055.4117449839. The cubic root of 2121100951 is about 1284.8539960384.

It can be divided in two parts, 212110095 and 1, that added together give a square (212110096 = 14564²).

The spelling of 2121100951 in words is "two billion, one hundred twenty-one million, one hundred thousand, nine hundred fifty-one".