21022111344140 has 12 divisors (see below), whose sum is σ = 44146433822736. Its totient is φ = 8408844537648.

The previous prime is 21022111344103. The next prime is 21022111344163. The reversal of 21022111344140 is 4144311122012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525552783584 + ... + 525552783623.

It is an arithmetic number, because the mean of its divisors is an integer number (3678869485228).

Almost surely, 2^{21022111344140} is an apocalyptic number.

21022111344140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022111344140 is an abundant number, since it is smaller than the sum of its proper divisors (23124322478596).

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

21022111344140 is a wasteful number, since it uses less digits than its factorization.

21022111344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051105567216 (or 1051105567214 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21022111344140 its reverse (4144311122012), we get a palindrome (25166422466152).

The spelling of 21022111344140 in words is "twenty-one trillion, twenty-two billion, one hundred eleven million, three hundred forty-four thousand, one hundred forty".