220030121032220 has 24 divisors (see below), whose sum is σ = 462529513799808. Its totient is φ = 87923237054400.

The previous prime is 220030121032213. The next prime is 220030121032247. The reversal of 220030121032220 is 22230121030022.

It is a happy number.

It is a super-2 number, since 2×220030121032220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220030121032192 and 220030121032201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5550689591 + ... + 5550729230.

It is an arithmetic number, because the mean of its divisors is an integer number (19272063074992).

Almost surely, 2^{220030121032220} is an apocalyptic number.

220030121032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220030121032220 is an abundant number, since it is smaller than the sum of its proper divisors (242499392767588).

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

220030121032220 is a wasteful number, since it uses less digits than its factorization.

220030121032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101419821 (or 11101419819 counting only the distinct ones).

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

Adding to 220030121032220 its reverse (22230121030022), we get a palindrome (242260242062242).

The spelling of 220030121032220 in words is "two hundred twenty trillion, thirty billion, one hundred twenty-one million, thirty-two thousand, two hundred twenty".