121101020211 has 8 divisors (see below), whose sum is σ = 161475828624. Its totient is φ = 80730112640.

The previous prime is 121101020147. The next prime is 121101020219. The reversal of 121101020211 is 112020101121.

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 121101020211 - 2⁶ = 121101020147 is a prime.

It is a super-2 number, since 2×121101020211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121101020219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901986 + ... + 1027511.

It is an arithmetic number, because the mean of its divisors is an integer number (20184478578).

Almost surely, 2^121101020211 is an apocalyptic number.

121101020211 is a deficient number, since it is larger than the sum of its proper divisors (40374808413).

121101020211 is a wasteful number, since it uses less digits than its factorization.

121101020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950421.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121101020211 its reverse (112020101121), we get a palindrome (233121121332).

The spelling of 121101020211 in words is "one hundred twenty-one billion, one hundred one million, twenty thousand, two hundred eleven".