242212202121 has 16 divisors (see below), whose sum is σ = 331999832448. Its totient is φ = 156958156800.

The previous prime is 242212202117. The next prime is 242212202131. The reversal of 242212202121 is 121202212242.

242212202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242212202121 - 2² = 242212202117 is a prime.

It is a super-3 number, since 3×242212202121³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (242212202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943800 + ... + 1172681.

It is an arithmetic number, because the mean of its divisors is an integer number (20749989528).

Almost surely, 2^242212202121 is an apocalyptic number.

It is an amenable number.

242212202121 is a deficient number, since it is larger than the sum of its proper divisors (89787630327).

242212202121 is a wasteful number, since it uses less digits than its factorization.

242212202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117552.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 242212202121 its reverse (121202212242), we get a palindrome (363414414363).

The spelling of 242212202121 in words is "two hundred forty-two billion, two hundred twelve million, two hundred two thousand, one hundred twenty-one".