121202012201001 has 16 divisors (see below), whose sum is σ = 169053562166400. Its totient is φ = 77138514282368.

The previous prime is 121202012200933. The next prime is 121202012201029. The reversal of 121202012201001 is 100102210202121.

It is a cyclic number.

It is not a de Polignac number, because 121202012201001 - 2¹⁵ = 121202012168233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121202012001001) 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, 7826546061 + ... + 7826561546.

It is an arithmetic number, because the mean of its divisors is an integer number (10565847635400).

Almost surely, 2^{121202012201001} is an apocalyptic number.

It is an amenable number.

121202012201001 is a deficient number, since it is larger than the sum of its proper divisors (47851549965399).

121202012201001 is a wasteful number, since it uses less digits than its factorization.

121202012201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15653107728.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121202012201001 its reverse (100102210202121), we get a palindrome (221304222403122).

The spelling of 121202012201001 in words is "one hundred twenty-one trillion, two hundred two billion, twelve million, two hundred one thousand, one".