121112011211210 has 16 divisors (see below), whose sum is σ = 218178713313792. Its totient is φ = 48405450454800.

The previous prime is 121112011211179. The next prime is 121112011211273. The reversal of 121112011211210 is 12112110211121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4919240786 + ... + 4919265405.

It is an arithmetic number, because the mean of its divisors is an integer number (13636169582112).

Almost surely, 2^{121112011211210} is an apocalyptic number.

121112011211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112011211210 is a deficient number, since it is larger than the sum of its proper divisors (97066702102582).

121112011211210 is a wasteful number, since it uses less digits than its factorization.

121112011211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9838507429.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121112011211210 its reverse (12112110211121), we get a palindrome (133224121422331).

The spelling of 121112011211210 in words is "one hundred twenty-one trillion, one hundred twelve billion, eleven million, two hundred eleven thousand, two hundred ten".