121102001011211 has 16 divisors (see below), whose sum is σ = 132547650490368. Its totient is φ = 109729183821600.

The previous prime is 121102001011207. The next prime is 121102001011223. The reversal of 121102001011211 is 112110100201121.

It is a cyclic number.

It is not a de Polignac number, because 121102001011211 - 2² = 121102001011207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121102001011291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21014966 + ... + 26150196.

It is an arithmetic number, because the mean of its divisors is an integer number (8284228155648).

Almost surely, 2^{121102001011211} is an apocalyptic number.

121102001011211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121102001011211 is a deficient number, since it is larger than the sum of its proper divisors (11445649479157).

121102001011211 is a wasteful number, since it uses less digits than its factorization.

121102001011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142322.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121102001011211 its reverse (112110100201121), we get a palindrome (233212101212332).

The spelling of 121102001011211 in words is "one hundred twenty-one trillion, one hundred two billion, one million, eleven thousand, two hundred eleven".