212001221102 has 16 divisors (see below), whose sum is σ = 346918989312. Its totient is φ = 96361996920.

The previous prime is 212001221087. The next prime is 212001221111. The reversal of 212001221102 is 201122100212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256093 + ... + 1414839.

It is an arithmetic number, because the mean of its divisors is an integer number (21682436832).

Almost surely, 2^212001221102 is an apocalyptic number.

212001221102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212001221102 is a deficient number, since it is larger than the sum of its proper divisors (134917768210).

212001221102 is a wasteful number, since it uses less digits than its factorization.

212001221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219463.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212001221102 its reverse (201122100212), we get a palindrome (413123321314).

The spelling of 212001221102 in words is "two hundred twelve billion, one million, two hundred twenty-one thousand, one hundred two".