211021101002 has 8 divisors (see below), whose sum is σ = 324251935812. Its totient is φ = 102937122400.

The previous prime is 211021101001. The next prime is 211021101089. The reversal of 211021101002 is 200101120112.

It can be written as a sum of positive squares in 2 ways, for example, as 191965783321 + 19055317681 = 438139^2 + 138041^2 .

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 (211021101001) 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, 1286713949 + ... + 1286714112.

Almost surely, 2^211021101002 is an apocalyptic number.

211021101002 is a deficient number, since it is larger than the sum of its proper divisors (113230834810).

211021101002 is a wasteful number, since it uses less digits than its factorization.

211021101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573428104.

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

Adding to 211021101002 its reverse (200101120112), we get a palindrome (411122221114).

The spelling of 211021101002 in words is "two hundred eleven billion, twenty-one million, one hundred one thousand, two".