211112221202 has 8 divisors (see below), whose sum is σ = 316670322636. Its totient is φ = 105555446992.

The previous prime is 211112221157. The next prime is 211112221211. The reversal of 211112221202 is 202122211112.

It can be written as a sum of positive squares in 2 ways, for example, as 195674407201 + 15437814001 = 442351^2 + 124249^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329288 + ... + 728460.

Almost surely, 2^211112221202 is an apocalyptic number.

211112221202 is a deficient number, since it is larger than the sum of its proper divisors (105558101434).

211112221202 is a wasteful number, since it uses less digits than its factorization.

211112221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663612.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211112221202 its reverse (202122211112), we get a palindrome (413234432314).

The spelling of 211112221202 in words is "two hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, two hundred two".