1202021112 has 32 divisors (see below), whose sum is σ = 3011057280. Its totient is φ = 399873120.

The previous prime is 1202021053. The next prime is 1202021113. The reversal of 1202021112 is 2111202021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37714 + ... + 61857.

It is an arithmetic number, because the mean of its divisors is an integer number (94095540).

Almost surely, 2^1202021112 is an apocalyptic number.

1202021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202021112 is an abundant number, since it is smaller than the sum of its proper divisors (1809036168).

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

1202021112 is a wasteful number, since it uses less digits than its factorization.

1202021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100083 (or 100079 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1202021112 is about 34670.1761172337. The cubic root of 1202021112 is about 1063.2548323277.

Adding to 1202021112 its reverse (2111202021), we get a palindrome (3313223133).

The spelling of 1202021112 in words is "one billion, two hundred two million, twenty-one thousand, one hundred twelve".