210101021212 has 12 divisors (see below), whose sum is σ = 367922079000. Its totient is φ = 104980427216.

The previous prime is 210101021189. The next prime is 210101021261. The reversal of 210101021212 is 212120101012.

It is a super-2 number, since 2×210101021212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210101021192 and 210101021201.

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, 17514103 + ... + 17526094.

It is an arithmetic number, because the mean of its divisors is an integer number (30660173250).

Almost surely, 2^210101021212 is an apocalyptic number.

It is an amenable number.

210101021212 is a deficient number, since it is larger than the sum of its proper divisors (157821057788).

210101021212 is a wasteful number, since it uses less digits than its factorization.

210101021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35041700 (or 35041698 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210101021212 its reverse (212120101012), we get a palindrome (422221122224).

The spelling of 210101021212 in words is "two hundred ten billion, one hundred one million, twenty-one thousand, two hundred twelve".