121021220021110 has 16 divisors (see below), whose sum is σ = 217919206944000. Its totient is φ = 48390485584896.

The previous prime is 121021220021083. The next prime is 121021220021173. The reversal of 121021220021110 is 11120022120121.

121021220021110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121021220021110² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 2250274710 + ... + 2250328489.

It is an arithmetic number, because the mean of its divisors is an integer number (13619950434000).

Almost surely, 2^{121021220021110} is an apocalyptic number.

121021220021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021220021110 is a deficient number, since it is larger than the sum of its proper divisors (96897986922890).

121021220021110 is a wasteful number, since it uses less digits than its factorization.

121021220021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500605895.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121021220021110 its reverse (11120022120121), we get a palindrome (132141242141231).

The spelling of 121021220021110 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty million, twenty-one thousand, one hundred ten".