15302222040120 has 128 divisors (see below), whose sum is σ = 47044071993600. Its totient is φ = 3979771858944.

The previous prime is 15302222040109. The next prime is 15302222040143. The reversal of 15302222040120 is 2104022220351.

It is a super-2 number, since 2×15302222040120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1269451 + ... + 5675909.

It is an arithmetic number, because the mean of its divisors is an integer number (367531812450).

Almost surely, 2^{15302222040120} is an apocalyptic number.

15302222040120 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 15302222040120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23522035996800).

15302222040120 is an abundant number, since it is smaller than the sum of its proper divisors (31741849953480).

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

15302222040120 is a wasteful number, since it uses less digits than its factorization.

15302222040120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407189 (or 4407185 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 15302222040120 its reverse (2104022220351), we get a palindrome (17406244260471).

The spelling of 15302222040120 in words is "fifteen trillion, three hundred two billion, two hundred twenty-two million, forty thousand, one hundred twenty".