21020201303122 has 64 divisors (see below), whose sum is σ = 36716901350400. Its totient is φ = 8838695678400.

The previous prime is 21020201303111. The next prime is 21020201303293. The reversal of 21020201303122 is 22130310202012.

It is a super-3 number, since 3×21020201303122³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21020201303122.

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, 2557509129 + ... + 2557517347.

It is an arithmetic number, because the mean of its divisors is an integer number (573701583600).

Almost surely, 2^{21020201303122} is an apocalyptic number.

21020201303122 is a deficient number, since it is larger than the sum of its proper divisors (15696700047278).

21020201303122 is a wasteful number, since it uses less digits than its factorization.

21020201303122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13951.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21020201303122 its reverse (22130310202012), we get a palindrome (43150511505134).

The spelling of 21020201303122 in words is "twenty-one trillion, twenty billion, two hundred one million, three hundred three thousand, one hundred twenty-two".