3011221001020 has 24 divisors (see below), whose sum is σ = 6360116503104. Its totient is φ = 1197526038336.

The previous prime is 3011221001003. The next prime is 3011221001029. The reversal of 3011221001020 is 201001221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011221001029) 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, 435144084 + ... + 435151003.

It is an arithmetic number, because the mean of its divisors is an integer number (265004854296).

Almost surely, 2^{3011221001020} is an apocalyptic number.

It is an amenable number.

3011221001020 is an abundant number, since it is smaller than the sum of its proper divisors (3348895502084).

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

3011221001020 is a wasteful number, since it uses less digits than its factorization.

3011221001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870295269 (or 870295267 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 3011221001020 its reverse (201001221103), we get a palindrome (3212222222123).

The spelling of 3011221001020 in words is "three trillion, eleven billion, two hundred twenty-one million, one thousand, twenty".