21141351122001 has 16 divisors (see below), whose sum is σ = 31140310056960. Its totient is φ = 12650750957520.

The previous prime is 21141351121967. The next prime is 21141351122071. The reversal of 21141351122001 is 10022115314112.

It is a happy number.

It is not a de Polignac number, because 21141351122001 - 2⁷ = 21141351121873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21141351122071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4054725265 + ... + 4054730478.

It is an arithmetic number, because the mean of its divisors is an integer number (1946269378560).

Almost surely, 2^{21141351122001} is an apocalyptic number.

It is an amenable number.

21141351122001 is a deficient number, since it is larger than the sum of its proper divisors (9998958934959).

21141351122001 is a wasteful number, since it uses less digits than its factorization.

21141351122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8109455836.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 21141351122001 its reverse (10022115314112), we get a palindrome (31163466436113).

The spelling of 21141351122001 in words is "twenty-one trillion, one hundred forty-one billion, three hundred fifty-one million, one hundred twenty-two thousand, one".