2120051 has 2 divisors, whose sum is σ = 2120052.
Its totient is φ = 2120050.
The previous prime is 2120021. The next prime is 2120057. The reversal of 2120051 is 1500212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2120051 - 214 = 2103667 is a prime.
It is not a weakly prime, because it can be changed into another prime (2120057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060025 + 1060026.
It is an arithmetic number, because the mean of its divisors is an integer number (1060026).
22120051 is an apocalyptic number.
2120051 is a deficient number, since it is larger than the sum of its proper divisors (1).
2120051 is an equidigital number, since it uses as much as digits as its factorization.
2120051 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20, while the sum is 11.
The square root of 2120051 is about 1456.0394912227.
The cubic root of 2120051 is about 128.4641958921.
Adding to 2120051 its reverse (1500212), we get a palindrome (3620263).
The spelling of 2120051 in words is "two million, one hundred twenty thousand, fifty-one".