33223301020 has 144 divisors (see below), whose sum is σ = 86530586688. Its totient is φ = 10491586560.

The previous prime is 33223301009. The next prime is 33223301021. The reversal of 33223301020 is 2010332233.

It is a happy number.

It is a super-2 number, since 2×33223301020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223301021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13177360 + ... + 13179880.

It is an arithmetic number, because the mean of its divisors is an integer number (600906852).

Almost surely, 2^33223301020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33223301020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43265293344).

33223301020 is an abundant number, since it is smaller than the sum of its proper divisors (53307285668).

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

33223301020 is a wasteful number, since it uses less digits than its factorization.

33223301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33223301020 its reverse (2010332233), we get a palindrome (35233633253).

The spelling of 33223301020 in words is "thirty-three billion, two hundred twenty-three million, three hundred one thousand, twenty".