2212020111121 has 2 divisors, whose sum is σ = 2212020111122. Its totient is φ = 2212020111120.

The previous prime is 2212020111089. The next prime is 2212020111131. The reversal of 2212020111121 is 1211110202122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1666100100625 + 545920010496 = 1290775^2 + 738864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212020111121 - 2⁵ = 2212020111089 is a prime.

It is a super-2 number, since 2×2212020111121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2212020111095 and 2212020111104.

It is not a weakly prime, because it can be changed into another prime (2212020111131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106010055560 + 1106010055561.

It is an arithmetic number, because the mean of its divisors is an integer number (1106010055561).

Almost surely, 2^{2212020111121} is an apocalyptic number.

It is an amenable number.

2212020111121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212020111121 is an equidigital number, since it uses as much as digits as its factorization.

2212020111121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2212020111121 its reverse (1211110202122), we get a palindrome (3423130313243).

The spelling of 2212020111121 in words is "two trillion, two hundred twelve billion, twenty million, one hundred eleven thousand, one hundred twenty-one".