121002012011 has 8 divisors (see below), whose sum is σ = 122028565824. Its totient is φ = 119977017160.

The previous prime is 121002011951. The next prime is 121002012037. The reversal of 121002012011 is 110210200121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121002012011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121002011983 and 121002012001.

It is not an unprimeable number, because it can be changed into a prime (121002012071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233585 + ... + 544578.

It is an arithmetic number, because the mean of its divisors is an integer number (15253570728).

Almost surely, 2^121002012011 is an apocalyptic number.

121002012011 is a deficient number, since it is larger than the sum of its proper divisors (1026553813).

121002012011 is a wasteful number, since it uses less digits than its factorization.

121002012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779481.

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

Adding to 121002012011 its reverse (110210200121), we get a palindrome (231212212132).

The spelling of 121002012011 in words is "one hundred twenty-one billion, two million, twelve thousand, eleven".