212218401244 has 12 divisors (see below), whose sum is σ = 371407363768. Its totient is φ = 106102011600.

The previous prime is 212218401233. The next prime is 212218401271. The reversal of 212218401244 is 442104812212.

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, 1730562 + ... + 1849129.

Almost surely, 2^212218401244 is an apocalyptic number.

It is an amenable number.

212218401244 is a deficient number, since it is larger than the sum of its proper divisors (159188962524).

212218401244 is a wasteful number, since it uses less digits than its factorization.

212218401244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594516 (or 3594514 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The spelling of 212218401244 in words is "two hundred twelve billion, two hundred eighteen million, four hundred one thousand, two hundred forty-four".