121011112012 has 24 divisors (see below), whose sum is σ = 245085800960. Its totient is φ = 51205424400.

The previous prime is 121011111997. The next prime is 121011112063. The reversal of 121011112012 is 210211110121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121011111983 and 121011112001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27351114 + ... + 27355537.

Almost surely, 2^121011112012 is an apocalyptic number.

It is an amenable number.

121011112012 is an abundant number, since it is smaller than the sum of its proper divisors (124074688948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121011112012 is a wasteful number, since it uses less digits than its factorization.

121011112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54706741 (or 54706739 counting only the distinct ones).

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

Adding to 121011112012 its reverse (210211110121), we get a palindrome (331222222133).

The spelling of 121011112012 in words is "one hundred twenty-one billion, eleven million, one hundred twelve thousand, twelve".