121020021002110 has 64 divisors (see below), whose sum is σ = 240711723758592. Its totient is φ = 43573514338816.

The previous prime is 121020021002081. The next prime is 121020021002117. The reversal of 121020021002110 is 11200120020121.

It is a super-2 number, since 2×121020021002110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020021002117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25947879 + ... + 30254461.

It is an arithmetic number, because the mean of its divisors is an integer number (3761120683728).

Almost surely, 2^{121020021002110} is an apocalyptic number.

121020021002110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020021002110 is a deficient number, since it is larger than the sum of its proper divisors (119691702756482).

121020021002110 is a wasteful number, since it uses less digits than its factorization.

121020021002110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313817.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121020021002110 its reverse (11200120020121), we get a palindrome (132220141022231).

The spelling of 121020021002110 in words is "one hundred twenty-one trillion, twenty billion, twenty-one million, two thousand, one hundred ten".