121310010211 has 8 divisors (see below), whose sum is σ = 130898219760. Its totient is φ = 111758467872.

The previous prime is 121310010179. The next prime is 121310010223. The reversal of 121310010211 is 112010013121.

It is a happy number.

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 121310010211 - 2⁵ = 121310010179 is a prime.

It is a super-2 number, since 2×121310010211² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121310010191 and 121310010200.

It is not an unprimeable number, because it can be changed into a prime (121310010281) 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, 9159925 + ... + 9173158.

It is an arithmetic number, because the mean of its divisors is an integer number (16362277470).

Almost surely, 2^121310010211 is an apocalyptic number.

121310010211 is a deficient number, since it is larger than the sum of its proper divisors (9588209549).

121310010211 is a wasteful number, since it uses less digits than its factorization.

121310010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333605.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121310010211 its reverse (112010013121), we get a palindrome (233320023332).

The spelling of 121310010211 in words is "one hundred twenty-one billion, three hundred ten million, ten thousand, two hundred eleven".