1020120121112 has 32 divisors (see below), whose sum is σ = 1995987674880. Its totient is φ = 487858974240.

The previous prime is 1020120121109. The next prime is 1020120121117. The reversal of 1020120121112 is 2111210210201.

It is a super-2 number, since 2×1020120121112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120121117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3831437 + ... + 4089027.

It is an arithmetic number, because the mean of its divisors is an integer number (62374614840).

Almost surely, 2^{1020120121112} is an apocalyptic number.

It is an amenable number.

1020120121112 is a deficient number, since it is larger than the sum of its proper divisors (975867553768).

1020120121112 is a wasteful number, since it uses less digits than its factorization.

1020120121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279143 (or 279139 counting only the distinct ones).

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

Adding to 1020120121112 its reverse (2111210210201), we get a palindrome (3131330331313).

The spelling of 1020120121112 in words is "one trillion, twenty billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twelve".