1201022112 has 48 divisors (see below), whose sum is σ = 3164736960. Its totient is φ = 398810112.

The previous prime is 1201022111. The next prime is 1201022131. The reversal of 1201022112 is 2112201021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1201022112² = 2884908227025881088, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1201022111) 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, 1464 + ... + 49032.

It is an arithmetic number, because the mean of its divisors is an integer number (65932020).

Almost surely, 2^1201022112 is an apocalyptic number.

1201022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201022112 is an abundant number, since it is smaller than the sum of its proper divisors (1963714848).

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

1201022112 is a wasteful number, since it uses less digits than its factorization.

1201022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47845 (or 47837 counting only the distinct ones).

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

The square root of 1201022112 is about 34655.7659271874. The cubic root of 1201022112 is about 1062.9601935826.

Adding to 1201022112 its reverse (2112201021), we get a palindrome (3313223133).

The spelling of 1201022112 in words is "one billion, two hundred one million, twenty-two thousand, one hundred twelve".