2151001500120 has 192 divisors, whose sum is σ = 7627866854400. Its totient is φ = 521346274560.

The previous prime is 2151001500113. The next prime is 2151001500173. The reversal of 2151001500120 is 210051001512.

2151001500120 is a `hidden beast` number, since 2 + 1 + 510 + 0 + 150 + 0 + 1 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2151001500093 and 2151001500102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19837011 + ... + 19945149.

It is an arithmetic number, because the mean of its divisors is an integer number (39728473200).

Almost surely, 2^{2151001500120} is an apocalyptic number.

2151001500120 is a gapful number since it is divisible by the number (20) 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 2151001500120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3813933427200).

2151001500120 is an abundant number, since it is smaller than the sum of its proper divisors (5476865354280).

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

2151001500120 is a wasteful number, since it uses less digits than its factorization.

2151001500120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113190 (or 113183 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 2151001500120 its reverse (210051001512), we get a palindrome (2361052501632).

The spelling of 2151001500120 in words is "two trillion, one hundred fifty-one billion, one million, five hundred thousand, one hundred twenty".