121201200221110 has 16 divisors (see below), whose sum is σ = 218163402751536. Its totient is φ = 48480204009888.

The previous prime is 121201200221033. The next prime is 121201200221111. The reversal of 121201200221110 is 11122002102121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201200221111) 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, 32661264 + ... + 36182323.

It is an arithmetic number, because the mean of its divisors is an integer number (13635212671971).

Almost surely, 2^{121201200221110} is an apocalyptic number.

121201200221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201200221110 is a deficient number, since it is larger than the sum of its proper divisors (96962202530426).

121201200221110 is a wasteful number, since it uses less digits than its factorization.

121201200221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69019647.

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

Adding to 121201200221110 its reverse (11122002102121), we get a palindrome (132323202323231).

The spelling of 121201200221110 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred million, two hundred twenty-one thousand, one hundred ten".