121021021222102 has 16 divisors (see below), whose sum is σ = 181545458918400. Its totient is φ = 60505868485800.

The previous prime is 121021021222091. The next prime is 121021021222103. The reversal of 121021021222102 is 201222120120121.

It is a super-2 number, since 2×121021021222102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121021021222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021021222103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2753522227 + ... + 2753566177.

It is an arithmetic number, because the mean of its divisors is an integer number (11346591182400).

Almost surely, 2^{121021021222102} is an apocalyptic number.

121021021222102 is a deficient number, since it is larger than the sum of its proper divisors (60524437696298).

121021021222102 is a wasteful number, since it uses less digits than its factorization.

121021021222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118251.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121021021222102 its reverse (201222120120121), we get a palindrome (322243141342223).

The spelling of 121021021222102 in words is "one hundred twenty-one trillion, twenty-one billion, twenty-one million, two hundred twenty-two thousand, one hundred two".