121020201002111 has 64 divisors (see below), whose sum is σ = 138393059328000. Its totient is φ = 105222093863040.

The previous prime is 121020201002101. The next prime is 121020201002119. The reversal of 121020201002111 is 111200102020121.

It is not a de Polignac number, because 121020201002111 - 2⁶ = 121020201002047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020201002119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 741359246 + ... + 741522468.

It is an arithmetic number, because the mean of its divisors is an integer number (2162391552000).

Almost surely, 2^{121020201002111} is an apocalyptic number.

121020201002111 is a deficient number, since it is larger than the sum of its proper divisors (17372858325889).

121020201002111 is a wasteful number, since it uses less digits than its factorization.

121020201002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163764.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121020201002111 its reverse (111200102020121), we get a palindrome (232220303022232).

The spelling of 121020201002111 in words is "one hundred twenty-one trillion, twenty billion, two hundred one million, two thousand, one hundred eleven".