242111122220 has 48 divisors (see below), whose sum is σ = 554906999808. Its totient is φ = 88000340160.

The previous prime is 242111122181. The next prime is 242111122249. The reversal of 242111122220 is 22221111242.

It is a happy number.

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 = 242111122192 and 242111122201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236219 + ... + 734861.

It is an arithmetic number, because the mean of its divisors is an integer number (11560562496).

Almost surely, 2^242111122220 is an apocalyptic number.

242111122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242111122220 is an abundant number, since it is smaller than the sum of its proper divisors (312795877588).

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

242111122220 is a wasteful number, since it uses less digits than its factorization.

242111122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500870 (or 500868 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 242111122220 its reverse (22221111242), we get a palindrome (264332233462).

It can be divided in two parts, 2421111222 and 20, that added together give a palindrome (2421111242).

The spelling of 242111122220 in words is "two hundred forty-two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twenty".