242021100311220 has 48 divisors (see below), whose sum is σ = 677740796853120. Its totient is φ = 64531177608576.

The previous prime is 242021100311213. The next prime is 242021100311239. The reversal of 242021100311220 is 22113001120242.

It is a happy number.

It is a super-2 number, since 2×242021100311220² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 242700600 + ... + 243695759.

It is an arithmetic number, because the mean of its divisors is an integer number (14119599934440).

Almost surely, 2^{242021100311220} is an apocalyptic number.

242021100311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242021100311220 is an abundant number, since it is smaller than the sum of its proper divisors (435719696541900).

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

242021100311220 is a wasteful number, since it uses less digits than its factorization.

242021100311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486404664 (or 486404662 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 242021100311220 its reverse (22113001120242), we get a palindrome (264134101431462).

The spelling of 242021100311220 in words is "two hundred forty-two trillion, twenty-one billion, one hundred million, three hundred eleven thousand, two hundred twenty".