1211100110202 has 16 divisors (see below), whose sum is σ = 2422228105440. Its totient is φ = 403695389232.

The previous prime is 1211100110183. The next prime is 1211100110257. The reversal of 1211100110202 is 2020110011121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574413 + ... + 1658960.

It is an arithmetic number, because the mean of its divisors is an integer number (151389256590).

Almost surely, 2^{1211100110202} is an apocalyptic number.

1211100110202 is an abundant number, since it is smaller than the sum of its proper divisors (1211127995238).

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

1211100110202 is a wasteful number, since it uses less digits than its factorization.

1211100110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323757.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1211100110202 its reverse (2020110011121), we get a palindrome (3231210121323).

The spelling of 1211100110202 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred ten thousand, two hundred two".