202421120242 has 16 divisors (see below), whose sum is σ = 331279884864. Its totient is φ = 91997010000.

The previous prime is 202421120227. The next prime is 202421120273. The reversal of 202421120242 is 242021124202.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 464109 + ... + 787552.

It is an arithmetic number, because the mean of its divisors is an integer number (20704992804).

Almost surely, 2^202421120242 is an apocalyptic number.

202421120242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202421120242 is a deficient number, since it is larger than the sum of its proper divisors (128858764622).

202421120242 is a wasteful number, since it uses less digits than its factorization.

202421120242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259025.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 202421120242 its reverse (242021124202), we get a palindrome (444442244444).

The spelling of 202421120242 in words is "two hundred two billion, four hundred twenty-one million, one hundred twenty thousand, two hundred forty-two".