121021202012001 has 8 divisors (see below), whose sum is σ = 163404154615680. Its totient is φ = 79659525374832.

The previous prime is 121021202011993. The next prime is 121021202012023. The reversal of 121021202012001 is 100210202120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121021202012001 - 2³ = 121021202011993 is a prime.

It is a super-2 number, since 2×121021202012001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021202012401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255318991350 + ... + 255318991823.

It is an arithmetic number, because the mean of its divisors is an integer number (20425519326960).

Almost surely, 2^{121021202012001} is an apocalyptic number.

It is an amenable number.

121021202012001 is a deficient number, since it is larger than the sum of its proper divisors (42382952603679).

121021202012001 is an equidigital number, since it uses as much as digits as its factorization.

121021202012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510637983255.

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

Adding to 121021202012001 its reverse (100210202120121), we get a palindrome (221231404132122).

The spelling of 121021202012001 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred two million, twelve thousand, one".