303140220212 has 24 divisors (see below), whose sum is σ = 532157984904. Its totient is φ = 151095232512.

The previous prime is 303140220191. The next prime is 303140220217. The reversal of 303140220212 is 212022041303.

It can be written as a sum of positive squares in 4 ways, for example, as 820593316 + 302319626896 = 28646^2 + 549836^2 .

It is a super-2 number, since 2×303140220212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303140220217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10144958 + ... + 10174794.

It is an arithmetic number, because the mean of its divisors is an integer number (22173249371).

Almost surely, 2^303140220212 is an apocalyptic number.

It is an amenable number.

303140220212 is a deficient number, since it is larger than the sum of its proper divisors (229017764692).

303140220212 is a wasteful number, since it uses less digits than its factorization.

303140220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37715 (or 37713 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 303140220212 its reverse (212022041303), we get a palindrome (515162261515).

The spelling of 303140220212 in words is "three hundred three billion, one hundred forty million, two hundred twenty thousand, two hundred twelve".