3020121252 has 36 divisors (see below), whose sum is σ = 7738780140. Its totient is φ = 992915712.

The previous prime is 3020121239. The next prime is 3020121259. The reversal of 3020121252 is 2521210203.

It can be written as a sum of positive squares in 2 ways, for example, as 2638465956 + 381655296 = 51366^2 + 19536^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×3020121252² = 18242264753564095008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3020121259) 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, 571977 + ... + 577232.

It is an arithmetic number, because the mean of its divisors is an integer number (214966115).

Almost surely, 2^3020121252 is an apocalyptic number.

It is an amenable number.

3020121252 is an abundant number, since it is smaller than the sum of its proper divisors (4718658888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3020121252 is a wasteful number, since it uses less digits than its factorization.

3020121252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149292 (or 1149287 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 3020121252 is about 54955.6298480874. The cubic root of 3020121252 is about 1445.4668178813.

Adding to 3020121252 its reverse (2521210203), we get a palindrome (5541331455).

The spelling of 3020121252 in words is "three billion, twenty million, one hundred twenty-one thousand, two hundred fifty-two".