121001221101102 has 16 divisors (see below), whose sum is σ = 250347354002640. Its totient is φ = 38942921733632.

The previous prime is 121001221101091. The next prime is 121001221101121. The reversal of 121001221101102 is 201101122100121.

It is a happy number.

It is a super-2 number, since 2×121001221101102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347704658163 + ... + 347704658510.

It is an arithmetic number, because the mean of its divisors is an integer number (15646709625165).

Almost surely, 2^{121001221101102} is an apocalyptic number.

121001221101102 is an abundant number, since it is smaller than the sum of its proper divisors (129346132901538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121001221101102 is a wasteful number, since it uses less digits than its factorization.

121001221101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695409316707.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121001221101102 its reverse (201101122100121), we get a palindrome (322102343201223).

The spelling of 121001221101102 in words is "one hundred twenty-one trillion, one billion, two hundred twenty-one million, one hundred one thousand, one hundred two".