21120221221202 has 32 divisors (see below), whose sum is σ = 32598036057600. Its totient is φ = 10259171607168.

The previous prime is 21120221221189. The next prime is 21120221221241. The reversal of 21120221221202 is 20212212202112.

It is a super-2 number, since 2×21120221221202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362943 + ... + 6915485.

It is an arithmetic number, because the mean of its divisors is an integer number (1018688626800).

Almost surely, 2^{21120221221202} is an apocalyptic number.

21120221221202 is a deficient number, since it is larger than the sum of its proper divisors (11477814836398).

21120221221202 is a wasteful number, since it uses less digits than its factorization.

21120221221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553090.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21120221221202 its reverse (20212212202112), we get a palindrome (41332433423314).

The spelling of 21120221221202 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred two".