211020121220012 has 96 divisors (see below), whose sum is σ = 405785384424000. Its totient is φ = 95422953157632.

The previous prime is 211020121219993. The next prime is 211020121220081. The reversal of 211020121220012 is 210022121020112.

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, 6003570614 + ... + 6003605762.

It is an arithmetic number, because the mean of its divisors is an integer number (4226931087750).

Almost surely, 2^{211020121220012} is an apocalyptic number.

It is an amenable number.

211020121220012 is a deficient number, since it is larger than the sum of its proper divisors (194765263203988).

211020121220012 is a wasteful number, since it uses less digits than its factorization.

211020121220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41715 (or 41713 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211020121220012 its reverse (210022121020112), we get a palindrome (421042242240124).

The spelling of 211020121220012 in words is "two hundred eleven trillion, twenty billion, one hundred twenty-one million, two hundred twenty thousand, twelve".