121102111112020 has 24 divisors (see below), whose sum is σ = 254317888364904. Its totient is φ = 48440186343936.

The previous prime is 121102111112011. The next prime is 121102111112089. The reversal of 121102111112020 is 20211111201121.

121102111112020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10779901292176 + 110322209819844 = 3283276^2 + 10503438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121102111111985 and 121102111112003.

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, 39621009 + ... + 42567928.

It is an arithmetic number, because the mean of its divisors is an integer number (10596578681871).

Almost surely, 2^{121102111112020} is an apocalyptic number.

121102111112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102111112020 is an abundant number, since it is smaller than the sum of its proper divisors (133215777252884).

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

121102111112020 is a wasteful number, since it uses less digits than its factorization.

121102111112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82262619 (or 82262617 counting only the distinct ones).

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

Adding to 121102111112020 its reverse (20211111201121), we get a palindrome (141313222313141).

It can be divided in two parts, 12110211 and 1112020, that added together give a palindrome (13222231).

The spelling of 121102111112020 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred eleven million, one hundred twelve thousand, twenty".