211202220121102 has 32 divisors (see below), whose sum is σ = 367468005042432. Its totient is φ = 89163496376064.

The previous prime is 211202220121031. The next prime is 211202220121103. The reversal of 211202220121102 is 201121022202112.

It is a self number, because there is not a number n which added to its sum of digits gives 211202220121102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211202220121103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115586533 + ... + 117399535.

It is an arithmetic number, because the mean of its divisors is an integer number (11483375157576).

Almost surely, 2^{211202220121102} is an apocalyptic number.

211202220121102 is a deficient number, since it is larger than the sum of its proper divisors (156265784921330).

211202220121102 is a wasteful number, since it uses less digits than its factorization.

211202220121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937272.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211202220121102 its reverse (201121022202112), we get a palindrome (412323242323214).

The spelling of 211202220121102 in words is "two hundred eleven trillion, two hundred two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred two".