212211220102 has 16 divisors (see below), whose sum is σ = 363805857792. Its totient is φ = 90943867080.

The previous prime is 212211220063. The next prime is 212211220129. The reversal of 212211220102 is 201022112212.

It is a happy number.

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, 44827 + ... + 653017.

It is an arithmetic number, because the mean of its divisors is an integer number (22737866112).

Almost surely, 2^212211220102 is an apocalyptic number.

212211220102 is a deficient number, since it is larger than the sum of its proper divisors (151594637690).

212211220102 is a wasteful number, since it uses less digits than its factorization.

212211220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633123.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212211220102 its reverse (201022112212), we get a palindrome (413233332314).

The spelling of 212211220102 in words is "two hundred twelve billion, two hundred eleven million, two hundred twenty thousand, one hundred two".