101021121002 has 4 divisors (see below), whose sum is σ = 151531681506. Its totient is φ = 50510560500.

The previous prime is 101021121001. The next prime is 101021121013. The reversal of 101021121002 is 200121120101.

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., 83342493481 + 17678627521 = 288691^2 + 132961^2 .

It is not an unprimeable number, because it can be changed into a prime (101021121001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25255280249 + ... + 25255280252.

Almost surely, 2^101021121002 is an apocalyptic number.

101021121002 is a deficient number, since it is larger than the sum of its proper divisors (50510560504).

101021121002 is an equidigital number, since it uses as much as digits as its factorization.

101021121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50510560503.

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

Adding to 101021121002 its reverse (200121120101), we get a palindrome (301142241103).

Subtracting 101021121002 from its reverse (200121120101), we obtain a palindrome (99099999099).

The spelling of 101021121002 in words is "one hundred one billion, twenty-one million, one hundred twenty-one thousand, two".