212101010101102 has 12 divisors (see below), whose sum is σ = 332585610358680. Its totient is φ = 101439613526108.

The previous prime is 212101010101081. The next prime is 212101010101117. The reversal of 212101010101102 is 201101010101212.

It is a happy number.

It is a super-2 number, since 2×212101010101102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100236771202 + ... + 100236773317.

It is an arithmetic number, because the mean of its divisors is an integer number (27715467529890).

Almost surely, 2^{212101010101102} is an apocalyptic number.

212101010101102 is a deficient number, since it is larger than the sum of its proper divisors (120484600257578).

212101010101102 is a wasteful number, since it uses less digits than its factorization.

212101010101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200473544567 (or 200473544544 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212101010101102 its reverse (201101010101212), we get a palindrome (413202020202314).

The spelling of 212101010101102 in words is "two hundred twelve trillion, one hundred one billion, ten million, one hundred one thousand, one hundred two".