222020101112121 has 12 divisors (see below), whose sum is σ = 345364601730148. Its totient is φ = 136627754530464.

The previous prime is 222020101112119. The next prime is 222020101112123. The reversal of 222020101112121 is 121211101020222.

It is an interprime number because it is at equal distance from previous prime (222020101112119) and next prime (222020101112123).

It can be written as a sum of positive squares in 2 ways, for example, as 137817362910096 + 84202738202025 = 11739564^2 + 9176205^2 .

It is not a de Polignac number, because 222020101112121 - 2¹ = 222020101112119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222020101112094 and 222020101112103.

It is not an unprimeable number, because it can be changed into a prime (222020101112123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 948803850790 + ... + 948803851023.

Almost surely, 2^{222020101112121} is an apocalyptic number.

It is an amenable number.

222020101112121 is a deficient number, since it is larger than the sum of its proper divisors (123344500618027).

222020101112121 is a wasteful number, since it uses less digits than its factorization.

222020101112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897607701832 (or 1897607701829 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222020101112121 its reverse (121211101020222), we get a palindrome (343231202132343).

The spelling of 222020101112121 in words is "two hundred twenty-two trillion, twenty billion, one hundred one million, one hundred twelve thousand, one hundred twenty-one".