2121203132222 has 16 divisors (see below), whose sum is σ = 3186455956992. Its totient is φ = 1059052240800.

The previous prime is 2121203132219. The next prime is 2121203132303. The reversal of 2121203132222 is 2222313021212.

It is a happy number.

It is a super-2 number, since 2×2121203132222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3625148 + ... + 4169424.

It is an arithmetic number, because the mean of its divisors is an integer number (199153497312).

Almost surely, 2^{2121203132222} is an apocalyptic number.

2121203132222 is a deficient number, since it is larger than the sum of its proper divisors (1065252824770).

2121203132222 is a wasteful number, since it uses less digits than its factorization.

2121203132222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547123.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2121203132222 its reverse (2222313021212), we get a palindrome (4343516153434).

The spelling of 2121203132222 in words is "two trillion, one hundred twenty-one billion, two hundred three million, one hundred thirty-two thousand, two hundred twenty-two".