101121021002 has 16 divisors (see below), whose sum is σ = 152578654152. Its totient is φ = 50261852160.

The previous prime is 101121020963. The next prime is 101121021007. The reversal of 101121021002 is 200120121101.

It can be written as a sum of positive squares in 4 ways, for example, as 81282580201 + 19838440801 = 285101^2 + 140849^2 .

It is not an unprimeable number, because it can be changed into a prime (101121021007) 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, 438218 + ... + 627914.

Almost surely, 2^101121021002 is an apocalyptic number.

101121021002 is a deficient number, since it is larger than the sum of its proper divisors (51457633150).

101121021002 is a wasteful number, since it uses less digits than its factorization.

101121021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191273.

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

Adding to 101121021002 its reverse (200120121101), we get a palindrome (301241142103).

The spelling of 101121021002 in words is "one hundred one billion, one hundred twenty-one million, twenty-one thousand, two".