1211122032 has 40 divisors (see below), whose sum is σ = 3130216320. Its totient is φ = 403515840.

The previous prime is 1211122019. The next prime is 1211122037. The reversal of 1211122032 is 2302211121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211122037) 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, 126469 + ... + 135707.

It is an arithmetic number, because the mean of its divisors is an integer number (78255408).

Almost surely, 2^1211122032 is an apocalyptic number.

1211122032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211122032 is an abundant number, since it is smaller than the sum of its proper divisors (1919094288).

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

1211122032 is a wasteful number, since it uses less digits than its factorization.

1211122032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11981 (or 11975 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1211122032 is about 34801.1786007313. The cubic root of 1211122032 is about 1065.9315123664.

Adding to 1211122032 its reverse (2302211121), we get a palindrome (3513333153).

It can be divided in two parts, 12111 and 22032, that added together give a palindrome (34143).

The spelling of 1211122032 in words is "one billion, two hundred eleven million, one hundred twenty-two thousand, thirty-two".