1211100220202 has 8 divisors (see below), whose sum is σ = 1816767830016. Its totient is φ = 605510943532.

The previous prime is 1211100220193. The next prime is 1211100220223. The reversal of 1211100220202 is 2020220011121.

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, 19544618 + ... + 19606485.

It is an arithmetic number, because the mean of its divisors is an integer number (227095978752).

Almost surely, 2^{1211100220202} is an apocalyptic number.

1211100220202 is a deficient number, since it is larger than the sum of its proper divisors (605667609814).

1211100220202 is a wasteful number, since it uses less digits than its factorization.

1211100220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39166572.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1211100220202 its reverse (2020220011121), we get a palindrome (3231320231323).

The spelling of 1211100220202 in words is "one trillion, two hundred eleven billion, one hundred million, two hundred twenty thousand, two hundred two".