1011203222112 has 72 divisors (see below), whose sum is σ = 2878004493000. Its totient is φ = 336786969600.

The previous prime is 1011203222101. The next prime is 1011203222171. The reversal of 1011203222112 is 2112223021101.

1011203222112 is a `hidden beast` number, since 10 + 1 + 120 + 322 + 211 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1115862 + ... + 1807637.

It is an arithmetic number, because the mean of its divisors is an integer number (39972284625).

Almost surely, 2^{1011203222112} is an apocalyptic number.

1011203222112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011203222112 is an abundant number, since it is smaller than the sum of its proper divisors (1866801270888).

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

1011203222112 is a wasteful number, since it uses less digits than its factorization.

1011203222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924716 (or 2924705 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1011203222112 its reverse (2112223021101), we get a palindrome (3123426243213).

The spelling of 1011203222112 in words is "one trillion, eleven billion, two hundred three million, two hundred twenty-two thousand, one hundred twelve".