121210010210011 has 4 divisors (see below), whose sum is σ = 122744314136800. Its totient is φ = 119675706283224.

The previous prime is 121210010209987. The next prime is 121210010210017. The reversal of 121210010210011 is 110012010012121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210010210011 is a prime.

It is a super-2 number, since 2×121210010210011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121210010209973 and 121210010210000.

It is not an unprimeable number, because it can be changed into a prime (121210010210017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767151963276 + ... + 767151963433.

It is an arithmetic number, because the mean of its divisors is an integer number (30686078534200).

Almost surely, 2^{121210010210011} is an apocalyptic number.

121210010210011 is a deficient number, since it is larger than the sum of its proper divisors (1534303926789).

121210010210011 is an equidigital number, since it uses as much as digits as its factorization.

121210010210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534303926788.

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

Adding to 121210010210011 its reverse (110012010012121), we get a palindrome (231222020222132).

The spelling of 121210010210011 in words is "one hundred twenty-one trillion, two hundred ten billion, ten million, two hundred ten thousand, eleven".