2017220033820 has 48 divisors (see below), whose sum is σ = 5648333433120. Its totient is φ = 537914167296.

The previous prime is 2017220033771. The next prime is 2017220033827. The reversal of 2017220033820 is 283300227102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2017220033827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2797324 + ... + 3443756.

It is an arithmetic number, because the mean of its divisors is an integer number (117673613190).

Almost surely, 2^{2017220033820} is an apocalyptic number.

2017220033820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2017220033820 is an abundant number, since it is smaller than the sum of its proper divisors (3631113399300).

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

2017220033820 is a wasteful number, since it uses less digits than its factorization.

2017220033820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698454 (or 698452 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 2017220033820 in words is "two trillion, seventeen billion, two hundred twenty million, thirty-three thousand, eight hundred twenty".