120021121221112 has 16 divisors (see below), whose sum is σ = 225068613570360. Its totient is φ = 60002824269024.

The previous prime is 120021121221083. The next prime is 120021121221121. The reversal of 120021121221112 is 211122121120021.

It is a happy number.

It is a super-2 number, since 2×120021121221112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120021121221112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966976758 + ... + 967100869.

Almost surely, 2^{120021121221112} is an apocalyptic number.

It is an amenable number.

120021121221112 is a deficient number, since it is larger than the sum of its proper divisors (105047492349248).

120021121221112 is a wasteful number, since it uses less digits than its factorization.

120021121221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934085390 (or 1934085386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120021121221112 its reverse (211122121120021), we get a palindrome (331143242341133).

The spelling of 120021121221112 in words is "one hundred twenty trillion, twenty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twelve".