121121020001201 has 16 divisors (see below), whose sum is σ = 139119135422400. Its totient is φ = 104290156569600.

The previous prime is 121121020001173. The next prime is 121121020001209. The reversal of 121121020001201 is 102100020121121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121121020001201 is a prime.

It is a super-2 number, since 2×121121020001201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121020001209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67437896 + ... + 69210633.

It is an arithmetic number, because the mean of its divisors is an integer number (8694945963900).

Almost surely, 2^{121121020001201} is an apocalyptic number.

121121020001201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121121020001201 is a deficient number, since it is larger than the sum of its proper divisors (17998115421199).

121121020001201 is a wasteful number, since it uses less digits than its factorization.

121121020001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136652800.

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

Adding to 121121020001201 its reverse (102100020121121), we get a palindrome (223221040122322).

The spelling of 121121020001201 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twenty million, one thousand, two hundred one".