121211101013 has 8 divisors (see below), whose sum is σ = 122678061408. Its totient is φ = 119744297584.

The previous prime is 121211101009. The next prime is 121211101021. The reversal of 121211101013 is 310101112121.

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 121211101013 - 2² = 121211101009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211101313) 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, 2504795 + ... + 2552727.

It is an arithmetic number, because the mean of its divisors is an integer number (15334757676).

Almost surely, 2^121211101013 is an apocalyptic number.

It is an amenable number.

121211101013 is a deficient number, since it is larger than the sum of its proper divisors (1466960395).

121211101013 is an equidigital number, since it uses as much as digits as its factorization.

121211101013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78483.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 121211101013 its reverse (310101112121), we get a palindrome (431312213134).

The spelling of 121211101013 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred one thousand, thirteen".