1202101011111 has 128 divisors (see below), whose sum is σ = 2398530355200. Its totient is φ = 513969960960.

The previous prime is 1202101011019. The next prime is 1202101011121. The reversal of 1202101011111 is 1111101012021.

It is not a de Polignac number, because 1202101011111 - 2⁷ = 1202101010983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202101011121) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 350310 + ... + 1589628.

It is an arithmetic number, because the mean of its divisors is an integer number (18738518400).

Almost surely, 2^{1202101011111} is an apocalyptic number.

1202101011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1202101011111 is a deficient number, since it is larger than the sum of its proper divisors (1196429344089).

1202101011111 is a wasteful number, since it uses less digits than its factorization.

1202101011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239389.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1202101011111 its reverse (1111101012021), we get a palindrome (2313202023132).

The spelling of 1202101011111 in words is "one trillion, two hundred two billion, one hundred one million, eleven thousand, one hundred eleven".