2121142301 has 2 divisors, whose sum is σ = 2121142302. Its totient is φ = 2121142300.

The previous prime is 2121142297. The next prime is 2121142307. The reversal of 2121142301 is 1032411212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2024100100 + 97042201 = 44990^2 + 9851^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121142301 - 2² = 2121142297 is a prime.

It is a super-2 number, since 2×2121142301² = 8998489322183149202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2121142301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121142307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060571150 + 1060571151.

It is an arithmetic number, because the mean of its divisors is an integer number (1060571151).

Almost surely, 2^2121142301 is an apocalyptic number.

It is an amenable number.

2121142301 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121142301 is an equidigital number, since it uses as much as digits as its factorization.

2121142301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2121142301 is about 46055.8606585525. The cubic root of 2121142301 is about 1284.8623452194.

Adding to 2121142301 its reverse (1032411212), we get a palindrome (3153553513).

The spelling of 2121142301 in words is "two billion, one hundred twenty-one million, one hundred forty-two thousand, three hundred one".