121111311302201 has 64 divisors (see below), whose sum is σ = 140111743749120. Its totient is φ = 103642627818240.

The previous prime is 121111311302119. The next prime is 121111311302213. The reversal of 121111311302201 is 102203113111121.

It is a cyclic number.

It is not a de Polignac number, because 121111311302201 - 2¹⁴ = 121111311285817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121111311332201) 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, 24551246531 + ... + 24551251463.

It is an arithmetic number, because the mean of its divisors is an integer number (2189245996080).

Almost surely, 2^{121111311302201} is an apocalyptic number.

121111311302201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121111311302201 is a deficient number, since it is larger than the sum of its proper divisors (19000432446919).

121111311302201 is a wasteful number, since it uses less digits than its factorization.

121111311302201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 121111311302201 its reverse (102203113111121), we get a palindrome (223314424413322).

The spelling of 121111311302201 in words is "one hundred twenty-one trillion, one hundred eleven billion, three hundred eleven million, three hundred two thousand, two hundred one".