1020120221112 has 32 divisors (see below), whose sum is σ = 2554879222800. Its totient is φ = 339429584384.

The previous prime is 1020120221083. The next prime is 1020120221143. The reversal of 1020120221112 is 2111220210201.

It is a junction number, because it is equal to n+sod(n) for n = 1020120221091 and 1020120221100.

It is a congruent number.

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, 38141937 + ... + 38168672.

Almost surely, 2^{1020120221112} is an apocalyptic number.

1020120221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020120221112 is an abundant number, since it is smaller than the sum of its proper divisors (1534759001688).

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

1020120221112 is a wasteful number, since it uses less digits than its factorization.

1020120221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76311175 (or 76311171 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1020120221112 its reverse (2111220210201), we get a palindrome (3131340431313).

The spelling of 1020120221112 in words is "one trillion, twenty billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twelve".