21121513540222 has 8 divisors (see below), whose sum is σ = 31683934614456. Its totient is φ = 10560202002072.

The previous prime is 21121513540207. The next prime is 21121513540241. The reversal of 21121513540222 is 22204531512112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21121513540222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277336428 + ... + 277412575.

It is an arithmetic number, because the mean of its divisors is an integer number (3960491826807).

Almost surely, 2^{21121513540222} is an apocalyptic number.

21121513540222 is a deficient number, since it is larger than the sum of its proper divisors (10562421074234).

21121513540222 is a wasteful number, since it uses less digits than its factorization.

21121513540222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554768042.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 21121513540222 in words is "twenty-one trillion, one hundred twenty-one billion, five hundred thirteen million, five hundred forty thousand, two hundred twenty-two".