121021101002 has 4 divisors (see below), whose sum is σ = 181531651506. Its totient is φ = 60510550500.

The previous prime is 121021100969. The next prime is 121021101007. The reversal of 121021101002 is 200101120121.

121021101002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97400792281 + 23620308721 = 312091^2 + 153689^2 .

It is a super-2 number, since 2×121021101002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021101007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30255275249 + ... + 30255275252.

Almost surely, 2^121021101002 is an apocalyptic number.

121021101002 is a deficient number, since it is larger than the sum of its proper divisors (60510550504).

121021101002 is an equidigital number, since it uses as much as digits as its factorization.

121021101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60510550503.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121021101002 its reverse (200101120121), we get a palindrome (321122221123).

The spelling of 121021101002 in words is "one hundred twenty-one billion, twenty-one million, one hundred one thousand, two".