211101211020202 has 8 divisors (see below), whose sum is σ = 335278393973316. Its totient is φ = 99341746362432.

The previous prime is 211101211020173. The next prime is 211101211020251. The reversal of 211101211020202 is 202020112101112.

It can be written as a sum of positive squares in 2 ways, for example, as 206292580426321 + 4808630593881 = 14362889^2 + 2192859^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104429573793 + ... + 3104429573860.

Almost surely, 2^{211101211020202} is an apocalyptic number.

211101211020202 is a deficient number, since it is larger than the sum of its proper divisors (124177182953114).

211101211020202 is a wasteful number, since it uses less digits than its factorization.

211101211020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208859147672.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211101211020202 its reverse (202020112101112), we get a palindrome (413121323121314).

The spelling of 211101211020202 in words is "two hundred eleven trillion, one hundred one billion, two hundred eleven million, twenty thousand, two hundred two".