121011412 has 6 divisors (see below), whose sum is σ = 211769978. Its totient is φ = 60505704.

The previous prime is 121011409. The next prime is 121011413. The reversal of 121011412 is 214110121.

It can be written as a sum of positive squares in only one way, i.e., 88247236 + 32764176 = 9394^2 + 5724^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121011392 and 121011401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15126423 + ... + 15126430.

Almost surely, 2^121011412 is an apocalyptic number.

It is an amenable number.

121011412 is a deficient number, since it is larger than the sum of its proper divisors (90758566).

121011412 is a wasteful number, since it uses less digits than its factorization.

121011412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30252857 (or 30252855 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 121011412 is about 11000.5187150425. The cubic root of 121011412 is about 494.6242933539.

Adding to 121011412 its reverse (214110121), we get a palindrome (335121533).

The spelling of 121011412 in words is "one hundred twenty-one million, eleven thousand, four hundred twelve".