1234215120 has 80 divisors (see below), whose sum is σ = 3842254080. Its totient is φ = 327731712.

The previous prime is 1234215119. The next prime is 1234215137. The reversal of 1234215120 is 215124321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1234215120² = 3046573924873228800, which 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, 46602 + ... + 68118.

It is an arithmetic number, because the mean of its divisors is an integer number (48028176).

Almost surely, 2^1234215120 is an apocalyptic number.

1234215120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234215120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1921127040).

1234215120 is an abundant number, since it is smaller than the sum of its proper divisors (2608038960).

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

1234215120 is a wasteful number, since it uses less digits than its factorization.

1234215120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21772 (or 21766 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1234215120 is about 35131.3979226560. The cubic root of 1234215120 is about 1072.6637911996.

Adding to 1234215120 its reverse (215124321), we get a palindrome (1449339441).

The spelling of 1234215120 in words is "one billion, two hundred thirty-four million, two hundred fifteen thousand, one hundred twenty".