2051200021502 has 4 divisors (see below), whose sum is σ = 3076800032256. Its totient is φ = 1025600010750.

The previous prime is 2051200021477. The next prime is 2051200021523.

It is a happy number.

2051200021502 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512800005374 + ... + 512800005377.

It is an arithmetic number, because the mean of its divisors is an integer number (769200008064).

Almost surely, 2^{2051200021502} is an apocalyptic number.

2051200021502 is a deficient number, since it is larger than the sum of its proper divisors (1025600010754).

2051200021502 is a wasteful number, since it uses less digits than its factorization.

2051200021502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025600010753.

The product of its (nonzero) digits is 400, while the sum is 20.

It can be divided in two parts, 20512000 and 21502, that added together give a palindrome (20533502).

The spelling of 2051200021502 in words is "two trillion, fifty-one billion, two hundred million, twenty-one thousand, five hundred two".