1202102211111 has 16 divisors (see below), whose sum is σ = 1664413513728. Its totient is φ = 770905792800.

The previous prime is 1202102211061. The next prime is 1202102211119. The reversal of 1202102211111 is 1111122012021.

It is a happy number.

It is not a de Polignac number, because 1202102211111 - 2¹³ = 1202102202919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202102211119) 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, 38684560 + ... + 38715621.

It is an arithmetic number, because the mean of its divisors is an integer number (104025844608).

Almost surely, 2^{1202102211111} is an apocalyptic number.

1202102211111 is a deficient number, since it is larger than the sum of its proper divisors (462311302617).

1202102211111 is a wasteful number, since it uses less digits than its factorization.

1202102211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77400382.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1202102211111 its reverse (1111122012021), we get a palindrome (2313224223132).

The spelling of 1202102211111 in words is "one trillion, two hundred two billion, one hundred two million, two hundred eleven thousand, one hundred eleven".