121122212320211 has 32 divisors (see below), whose sum is σ = 126837292082688. Its totient is φ = 115445460936960.

The previous prime is 121122212320181. The next prime is 121122212320217. The reversal of 121122212320211 is 112023212221121.

It is a cyclic number.

It is not a de Polignac number, because 121122212320211 - 2⁴² = 116724165809107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122212320217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22754498996 + ... + 22754504318.

It is an arithmetic number, because the mean of its divisors is an integer number (3963665377584).

Almost surely, 2^{121122212320211} is an apocalyptic number.

121122212320211 is a deficient number, since it is larger than the sum of its proper divisors (5715079762477).

121122212320211 is a wasteful number, since it uses less digits than its factorization.

121122212320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 121122212320211 its reverse (112023212221121), we get a palindrome (233145424541332).

The spelling of 121122212320211 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twelve million, three hundred twenty thousand, two hundred eleven".