2141420121 has 12 divisors (see below), whose sum is σ = 3097907748. Its totient is φ = 1425423264.

The previous prime is 2141420111. The next prime is 2141420219. The reversal of 2141420121 is 1210241412.

It can be written as a sum of positive squares in 2 ways, for example, as 732243600 + 1409176521 = 27060^2 + 37539^2 .

It is not a de Polignac number, because 2141420121 - 2¹⁰ = 2141419097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2141420094 and 2141420103.

It is not an unprimeable number, because it can be changed into a prime (2141420111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176310 + ... + 188063.

It is an arithmetic number, because the mean of its divisors is an integer number (258158979).

Almost surely, 2^2141420121 is an apocalyptic number.

It is an amenable number.

2141420121 is a deficient number, since it is larger than the sum of its proper divisors (956487627).

2141420121 is a wasteful number, since it uses less digits than its factorization.

2141420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365032 (or 365029 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2141420121 is about 46275.4807754603. The cubic root of 2141420121 is about 1288.9437342367.

Adding to 2141420121 its reverse (1210241412), we get a palindrome (3351661533).

The spelling of 2141420121 in words is "two billion, one hundred forty-one million, four hundred twenty thousand, one hundred twenty-one".