12021022121102 has 32 divisors (see below), whose sum is σ = 18520807624704. Its totient is φ = 5849302669600.

The previous prime is 12021022121081. The next prime is 12021022121107. The reversal of 12021022121102 is 20112122012021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021022121107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29108303 + ... + 29518389.

It is an arithmetic number, because the mean of its divisors is an integer number (578775238272).

Almost surely, 2^{12021022121102} is an apocalyptic number.

12021022121102 is a deficient number, since it is larger than the sum of its proper divisors (6499785503602).

12021022121102 is a wasteful number, since it uses less digits than its factorization.

12021022121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412384.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021022121102 its reverse (20112122012021), we get a palindrome (32133144133123).

The spelling of 12021022121102 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred twenty-one thousand, one hundred two".