1234204242220 has 12 divisors (see below), whose sum is σ = 2591828908704. Its totient is φ = 493681696880.

The previous prime is 1234204242181. The next prime is 1234204242233. The reversal of 1234204242220 is 222424024321.

It is a happy number.

It is a super-2 number, since 2×1234204242220² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30855106036 + ... + 30855106075.

It is an arithmetic number, because the mean of its divisors is an integer number (215985742392).

Almost surely, 2^{1234204242220} is an apocalyptic number.

1234204242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234204242220 is an abundant number, since it is smaller than the sum of its proper divisors (1357624666484).

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

1234204242220 is a wasteful number, since it uses less digits than its factorization.

1234204242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61710212120 (or 61710212118 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 1234204242220 its reverse (222424024321), we get a palindrome (1456628266541).

The spelling of 1234204242220 in words is "one trillion, two hundred thirty-four billion, two hundred four million, two hundred forty-two thousand, two hundred twenty".