21211010212294 has 64 divisors (see below), whose sum is σ = 37397262988800. Its totient is φ = 8835395251968.

The previous prime is 21211010212211. The next prime is 21211010212361. The reversal of 21211010212294 is 49221201011212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41793642 + ... + 42298114.

It is an arithmetic number, because the mean of its divisors is an integer number (584332234200).

Almost surely, 2^{21211010212294} is an apocalyptic number.

21211010212294 is a deficient number, since it is larger than the sum of its proper divisors (16186252776506).

21211010212294 is a wasteful number, since it uses less digits than its factorization.

21211010212294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505117.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 21211010212294 in words is "twenty-one trillion, two hundred eleven billion, ten million, two hundred twelve thousand, two hundred ninety-four".