1101122421 has 32 divisors (see below), whose sum is σ = 1709395968. Its totient is φ = 617474880.

The previous prime is 1101122413. The next prime is 1101122443. The reversal of 1101122421 is 1242211011.

It is not a de Polignac number, because 1101122421 - 2³ = 1101122413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101122421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101122471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410916 + ... + 413586.

It is an arithmetic number, because the mean of its divisors is an integer number (53418624).

Almost surely, 2^1101122421 is an apocalyptic number.

It is an amenable number.

1101122421 is a deficient number, since it is larger than the sum of its proper divisors (608273547).

1101122421 is a wasteful number, since it uses less digits than its factorization.

1101122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1101122421 is about 33183.1647224914. The cubic root of 1101122421 is about 1032.6311030360.

Adding to 1101122421 its reverse (1242211011), we get a palindrome (2343333432).

The spelling of 1101122421 in words is "one billion, one hundred one million, one hundred twenty-two thousand, four hundred twenty-one".