21121200002201 has 32 divisors (see below), whose sum is σ = 24342407712000. Its totient is φ = 18164748268800.

The previous prime is 21121200002131. The next prime is 21121200002219. The reversal of 21121200002201 is 10220000212112.

It is a cyclic number.

It is not a de Polignac number, because 21121200002201 - 2³⁸ = 20846322095257 is a prime.

It is a super-2 number, since 2×21121200002201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21121200001201) 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, 876020 + ... + 6558186.

It is an arithmetic number, because the mean of its divisors is an integer number (760700241000).

Almost surely, 2^{21121200002201} is an apocalyptic number.

It is an amenable number.

21121200002201 is a deficient number, since it is larger than the sum of its proper divisors (3221207709799).

21121200002201 is a wasteful number, since it uses less digits than its factorization.

21121200002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682449.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21121200002201 its reverse (10220000212112), we get a palindrome (31341200214313).

The spelling of 21121200002201 in words is "twenty-one trillion, one hundred twenty-one billion, two hundred million, two thousand, two hundred one".