121021020011002 has 8 divisors (see below), whose sum is σ = 181569916905300. Its totient is φ = 60497714375904.

The previous prime is 121021020010973. The next prime is 121021020011009. The reversal of 121021020011002 is 200110020120121.

It can be written as a sum of positive squares in 2 ways, for example, as 94446696020161 + 26574323990841 = 9718369^2 + 5155029^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121021020011009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6397802977 + ... + 6397821892.

Almost surely, 2^{121021020011002} is an apocalyptic number.

121021020011002 is a deficient number, since it is larger than the sum of its proper divisors (60548896894298).

121021020011002 is a wasteful number, since it uses less digits than its factorization.

121021020011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12795629600.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121021020011002 its reverse (200110020120121), we get a palindrome (321131040131123).

The spelling of 121021020011002 in words is "one hundred twenty-one trillion, twenty-one billion, twenty million, eleven thousand, two".