121000212011 has 8 divisors (see below), whose sum is σ = 138727767264. Its totient is φ = 103383109440.

The previous prime is 121000211999. The next prime is 121000212029. The reversal of 121000212011 is 110212000121.

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 121000212011 - 2¹⁰ = 121000210987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000211983 and 121000212001.

It is not an unprimeable number, because it can be changed into a prime (121000292011) 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, 27610820 + ... + 27615201.

It is an arithmetic number, because the mean of its divisors is an integer number (17340970908).

Almost surely, 2^121000212011 is an apocalyptic number.

121000212011 is a deficient number, since it is larger than the sum of its proper divisors (17727555253).

121000212011 is an equidigital number, since it uses as much as digits as its factorization.

121000212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55226341.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121000212011 its reverse (110212000121), we get a palindrome (231212212132).

The spelling of 121000212011 in words is "one hundred twenty-one billion, two hundred twelve thousand, eleven".