1242022202420 has 12 divisors (see below), whose sum is σ = 2608246625124. Its totient is φ = 496808880960.

The previous prime is 1242022202413. The next prime is 1242022202441. The reversal of 1242022202420 is 242022202421.

It can be written as a sum of positive squares in 2 ways, for example, as 506935456036 + 735086746384 = 711994^2 + 857372^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31050555041 + ... + 31050555080.

It is an arithmetic number, because the mean of its divisors is an integer number (217353885427).

Almost surely, 2^{1242022202420} is an apocalyptic number.

1242022202420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242022202420 is an abundant number, since it is smaller than the sum of its proper divisors (1366224422704).

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

1242022202420 is a wasteful number, since it uses less digits than its factorization.

1242022202420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62101110130 (or 62101110128 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 1242022202420 its reverse (242022202421), we get a palindrome (1484044404841).

Subtracting from 1242022202420 its reverse (242022202421), we obtain a palindrome (999999999999).

The spelling of 1242022202420 in words is "one trillion, two hundred forty-two billion, twenty-two million, two hundred two thousand, four hundred twenty".