2120551510 has 64 divisors (see below), whose sum is σ = 4764593664. Its totient is φ = 660153600.

The previous prime is 2120551501. The next prime is 2120551519. The reversal of 2120551510 is 151550212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2120551501) and next prime (2120551519).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120551519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1208794 + ... + 1210546.

It is an arithmetic number, because the mean of its divisors is an integer number (74446776).

Almost surely, 2^2120551510 is an apocalyptic number.

2120551510 is an abundant number, since it is smaller than the sum of its proper divisors (2644042154).

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

2120551510 is a wasteful number, since it uses less digits than its factorization.

2120551510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 2120551510 is about 46049.4463593212. The cubic root of 2120551510 is about 1284.7430454134.

The spelling of 2120551510 in words is "two billion, one hundred twenty million, five hundred fifty-one thousand, five hundred ten".