6201221512 has 16 divisors (see below), whose sum is σ = 12311248860. Its totient is φ = 2918221824.

The previous prime is 6201221473. The next prime is 6201221519. The reversal of 6201221512 is 2151221026.

It can be written as a sum of positive squares in 2 ways, for example, as 6175759396 + 25462116 = 78586^2 + 5046^2 .

It is a super-2 number, since 2×6201221512² = 76910296481783132288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6201221519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22798473 + ... + 22798744.

Almost surely, 2^6201221512 is an apocalyptic number.

It is an amenable number.

6201221512 is a deficient number, since it is larger than the sum of its proper divisors (6110027348).

6201221512 is a wasteful number, since it uses less digits than its factorization.

6201221512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45597240 (or 45597236 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 6201221512 is about 78747.8349670643. The cubic root of 6201221512 is about 1837.2111887667.

Adding to 6201221512 its reverse (2151221026), we get a palindrome (8352442538).

The spelling of 6201221512 in words is "six billion, two hundred one million, two hundred twenty-one thousand, five hundred twelve".