121202012112001 has 64 divisors (see below), whose sum is σ = 127433012797440. Its totient is φ = 115212338841600.

The previous prime is 121202012111953. The next prime is 121202012112109. The reversal of 121202012112001 is 100211210202121.

It is a cyclic number.

It is not a de Polignac number, because 121202012112001 - 2¹¹ = 121202012109953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121202012113001) 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, 12008516911 + ... + 12008527003.

It is an arithmetic number, because the mean of its divisors is an integer number (1991140824960).

Almost surely, 2^{121202012112001} is an apocalyptic number.

It is an amenable number.

121202012112001 is a deficient number, since it is larger than the sum of its proper divisors (6231000685439).

121202012112001 is a wasteful number, since it uses less digits than its factorization.

121202012112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634.

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

Adding to 121202012112001 its reverse (100211210202121), we get a palindrome (221413222314122).

The spelling of 121202012112001 in words is "one hundred twenty-one trillion, two hundred two billion, twelve million, one hundred twelve thousand, one".