121011202122211 has 2 divisors, whose sum is σ = 121011202122212. Its totient is φ = 121011202122210.

The previous prime is 121011202122149. The next prime is 121011202122241. The reversal of 121011202122211 is 112221202110121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121011202122211 - 2¹⁷ = 121011201991139 is a prime.

It is a super-2 number, since 2×121011202122211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121011202122241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505601061105 + 60505601061106.

It is an arithmetic number, because the mean of its divisors is an integer number (60505601061106).

Almost surely, 2^{121011202122211} is an apocalyptic number.

121011202122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011202122211 is an equidigital number, since it uses as much as digits as its factorization.

121011202122211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121011202122211 its reverse (112221202110121), we get a palindrome (233232404232332).

The spelling of 121011202122211 in words is "one hundred twenty-one trillion, eleven billion, two hundred two million, one hundred twenty-two thousand, two hundred eleven".