21213611540062 has 32 divisors (see below), whose sum is σ = 32307105920544. Its totient is φ = 10446175756800.

The previous prime is 21213611540047. The next prime is 21213611540071. The reversal of 21213611540062 is 26004511631212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15940978 + ... + 17220394.

It is an arithmetic number, because the mean of its divisors is an integer number (1009597060017).

Almost surely, 2^{21213611540062} is an apocalyptic number.

21213611540062 is a deficient number, since it is larger than the sum of its proper divisors (11093494380482).

21213611540062 is a wasteful number, since it uses less digits than its factorization.

21213611540062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280044.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 21213611540062 in words is "twenty-one trillion, two hundred thirteen billion, six hundred eleven million, five hundred forty thousand, sixty-two".