6221501121 has 16 divisors (see below), whose sum is σ = 9139059648. Its totient is φ = 3733272000.

The previous prime is 6221501093. The next prime is 6221501137. The reversal of 6221501121 is 1211051226.

It is not a de Polignac number, because 6221501121 - 2¹³ = 6221492929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6221501521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929986 + ... + 936651.

It is an arithmetic number, because the mean of its divisors is an integer number (571191228).

Almost surely, 2^6221501121 is an apocalyptic number.

It is an amenable number.

6221501121 is a deficient number, since it is larger than the sum of its proper divisors (2917558527).

6221501121 is a wasteful number, since it uses less digits than its factorization.

6221501121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866752.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 6221501121 is about 78876.4928289792. The cubic root of 6221501121 is about 1839.2117292379.

Adding to 6221501121 its reverse (1211051226), we get a palindrome (7432552347).

The spelling of 6221501121 in words is "six billion, two hundred twenty-one million, five hundred one thousand, one hundred twenty-one".