1211100020202 has 8 divisors (see below), whose sum is σ = 2422200040416. Its totient is φ = 403700006732.

The previous prime is 1211100020189. The next prime is 1211100020269. The reversal of 1211100020202 is 2020200011121.

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

1211100020202 is an admirable number.

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, 100925001678 + ... + 100925001689.

It is an arithmetic number, because the mean of its divisors is an integer number (302775005052).

Almost surely, 2^{1211100020202} is an apocalyptic number.

1211100020202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211100020202 is a wasteful number, since it uses less digits than its factorization.

1211100020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201850003372.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1211100020202 its reverse (2020200011121), we get a palindrome (3231300031323).

The spelling of 1211100020202 in words is "one trillion, two hundred eleven billion, one hundred million, twenty thousand, two hundred two".