12121012212110 has 8 divisors (see below), whose sum is σ = 21817821981816. Its totient is φ = 4848404884840.

The previous prime is 12121012212037. The next prime is 12121012212143. The reversal of 12121012212110 is 1121221012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12121012212110² (a number of 27 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 3 ways as a sum of consecutive naturals, for example, 606050610596 + ... + 606050610615.

It is an arithmetic number, because the mean of its divisors is an integer number (2727227747727).

Almost surely, 2^{12121012212110} is an apocalyptic number.

12121012212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121012212110 is a deficient number, since it is larger than the sum of its proper divisors (9696809769706).

12121012212110 is a wasteful number, since it uses less digits than its factorization.

12121012212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212101221218.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12121012212110 its reverse (1121221012121), we get a palindrome (13242233224231).

The spelling of 12121012212110 in words is "twelve trillion, one hundred twenty-one billion, twelve million, two hundred twelve thousand, one hundred ten".