121110120212 has 12 divisors (see below), whose sum is σ = 213489738420. Its totient is φ = 60113052096.

The previous prime is 121110120191. The next prime is 121110120217. The reversal of 121110120212 is 212021011121.

It can be written as a sum of positive squares in 2 ways, for example, as 22561842436 + 98548277776 = 150206^2 + 313924^2 .

It is a super-6 number, since 6×121110120212⁶ (a number of 68 digits) contains 666666 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110120217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110501387 + ... + 110502482.

It is an arithmetic number, because the mean of its divisors is an integer number (17790811535).

Almost surely, 2^121110120212 is an apocalyptic number.

It is an amenable number.

121110120212 is a deficient number, since it is larger than the sum of its proper divisors (92379618208).

121110120212 is a wasteful number, since it uses less digits than its factorization.

121110120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221004010 (or 221004008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121110120212 its reverse (212021011121), we get a palindrome (333131131333).

The spelling of 121110120212 in words is "one hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, two hundred twelve".