2121055162 has 4 divisors (see below), whose sum is σ = 3181582746. Its totient is φ = 1060527580.

The previous prime is 2121055129. The next prime is 2121055163. The reversal of 2121055162 is 2615501212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1649253321 + 471801841 = 40611^2 + 21721^2 .

It is not an unprimeable number, because it can be changed into a prime (2121055163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530263789 + ... + 530263792.

Almost surely, 2^2121055162 is an apocalyptic number.

2121055162 is a deficient number, since it is larger than the sum of its proper divisors (1060527584).

2121055162 is a wasteful number, since it uses less digits than its factorization.

2121055162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060527583.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 2121055162 is about 46054.9146345968. The cubic root of 2121055162 is about 1284.8447504305.

Adding to 2121055162 its reverse (2615501212), we get a palindrome (4736556374).

The spelling of 2121055162 in words is "two billion, one hundred twenty-one million, fifty-five thousand, one hundred sixty-two".