121021222021202 has 32 divisors (see below), whose sum is σ = 189654028052400. Its totient is φ = 57844620288000.

The previous prime is 121021222021199. The next prime is 121021222021237. The reversal of 121021222021202 is 202120222120121.

It can be written as a sum of positive squares in 8 ways, for example, as 99307383465481 + 21713838555721 = 9965309^2 + 4659811^2 .

It is a super-2 number, since 2×121021222021202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454969202 + ... + 455235122.

Almost surely, 2^{121021222021202} is an apocalyptic number.

121021222021202 is a deficient number, since it is larger than the sum of its proper divisors (68632806031198).

121021222021202 is a wasteful number, since it uses less digits than its factorization.

121021222021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343742.

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

Adding to 121021222021202 its reverse (202120222120121), we get a palindrome (323141444141323).

The spelling of 121021222021202 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty-two million, twenty-one thousand, two hundred two".