121000012111210 has 16 divisors (see below), whose sum is σ = 217907471280096. Its totient is φ = 48376127182288.

The previous prime is 121000012111201. The next prime is 121000012111213. The reversal of 121000012111210 is 12111210000121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121000012111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984686492 + ... + 2984727031.

It is an arithmetic number, because the mean of its divisors is an integer number (13619216955006).

Almost surely, 2^{121000012111210} is an apocalyptic number.

121000012111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000012111210 is a deficient number, since it is larger than the sum of its proper divisors (96907459168886).

121000012111210 is a wasteful number, since it uses less digits than its factorization.

121000012111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969415557.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121000012111210 its reverse (12111210000121), we get a palindrome (133111222111331).

The spelling of 121000012111210 in words is "one hundred twenty-one trillion, twelve million, one hundred eleven thousand, two hundred ten".