121012211000011 has 16 divisors (see below), whose sum is σ = 123880488710400. Its totient is φ = 118171202508000.

The previous prime is 121012210999991. The next prime is 121012211000027. The reversal of 121012211000011 is 110000112210121.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121012211000011 is a prime.

It is a super-2 number, since 2×121012211000011² (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 = 121012210999955 and 121012211000000.

It is not an unprimeable number, because it can be changed into a prime (121012281000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754788325 + ... + 754948633.

It is an arithmetic number, because the mean of its divisors is an integer number (7742530544400).

Almost surely, 2^{121012211000011} is an apocalyptic number.

121012211000011 is a deficient number, since it is larger than the sum of its proper divisors (2868277710389).

121012211000011 is a wasteful number, since it uses less digits than its factorization.

121012211000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245250.

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

Adding to 121012211000011 its reverse (110000112210121), we get a palindrome (231012323210132).

The spelling of 121012211000011 in words is "one hundred twenty-one trillion, twelve billion, two hundred eleven million, eleven", and thus it is an aban number.