12101210101012 has 24 divisors (see below), whose sum is σ = 21225590134112. Its totient is φ = 6036769965600.

The previous prime is 12101210101009. The next prime is 12101210101051. The reversal of 12101210101012 is 21010101210121.

It is a happy number.

12101210101012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12101210100983 and 12101210101001.

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, 1640803 + ... + 5186005.

Almost surely, 2^{12101210101012} is an apocalyptic number.

It is an amenable number.

12101210101012 is a deficient number, since it is larger than the sum of its proper divisors (9124380033100).

12101210101012 is a wasteful number, since it uses less digits than its factorization.

12101210101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547159 (or 3547157 counting only the distinct ones).

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

Adding to 12101210101012 its reverse (21010101210121), we get a palindrome (33111311311133).

The spelling of 12101210101012 in words is "twelve trillion, one hundred one billion, two hundred ten million, one hundred one thousand, twelve".