122121012121211 has 8 divisors (see below), whose sum is σ = 126077045883264. Its totient is φ = 118166018751360.

The previous prime is 122121012121183. The next prime is 122121012121231. The reversal of 122121012121211 is 112121210121221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122121012121211 - 2⁴⁶ = 51752267943547 is a prime.

It is a super-2 number, since 2×122121012121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121012121231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 259859486 + ... + 260329011.

It is an arithmetic number, because the mean of its divisors is an integer number (15759630735408).

Almost surely, 2^{122121012121211} is an apocalyptic number.

122121012121211 is a deficient number, since it is larger than the sum of its proper divisors (3956033762053).

122121012121211 is an equidigital number, since it uses as much as digits as its factorization.

122121012121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520196101.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 122121012121211 its reverse (112121210121221), we get a palindrome (234242222242432).

The spelling of 122121012121211 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, twelve million, one hundred twenty-one thousand, two hundred eleven".