20110102121212 has 36 divisors (see below), whose sum is σ = 36520619951088. Its totient is φ = 9688931505600.

The previous prime is 20110102121209. The next prime is 20110102121261. The reversal of 20110102121212 is 21212120101102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10330864 + ... + 12122167.

It is an arithmetic number, because the mean of its divisors is an integer number (1014461665308).

Almost surely, 2^{20110102121212} is an apocalyptic number.

It is an amenable number.

20110102121212 is a deficient number, since it is larger than the sum of its proper divisors (16410517829876).

20110102121212 is a wasteful number, since it uses less digits than its factorization.

20110102121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22453330 (or 22453297 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20110102121212 its reverse (21212120101102), we get a palindrome (41322222222314).

The spelling of 20110102121212 in words is "twenty trillion, one hundred ten billion, one hundred two million, one hundred twenty-one thousand, two hundred twelve".