1012222221120 has 168 divisors, whose sum is σ = 3798133953120. Its totient is φ = 245387197440.

The previous prime is 1012222221113. The next prime is 1012222221121. The reversal of 1012222221120 is 211222222101.

It is a happy number.

1012222221120 is a `hidden beast` number, since 101 + 2 + 222 + 221 + 120 = 666.

1012222221120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 1012222221093 and 1012222221102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222221121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15944050 + ... + 16007409.

Almost surely, 2^{1012222221120} is an apocalyptic number.

1012222221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012222221120 is an abundant number, since it is smaller than the sum of its proper divisors (2785911732000).

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

1012222221120 is a wasteful number, since it uses less digits than its factorization.

1012222221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31951493 (or 31951480 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1012222221120 its reverse (211222222101), we get a palindrome (1223444443221).

The spelling of 1012222221120 in words is "one trillion, twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".