1202101021111 has 2 divisors, whose sum is σ = 1202101021112. Its totient is φ = 1202101021110.

The previous prime is 1202101021031. The next prime is 1202101021123. The reversal of 1202101021111 is 1111201012021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1202101021111 - 2³³ = 1193511086519 is a prime.

It is a super-2 number, since 2×1202101021111² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202101021091 and 1202101021100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202101021171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601050510555 + 601050510556.

It is an arithmetic number, because the mean of its divisors is an integer number (601050510556).

Almost surely, 2^{1202101021111} is an apocalyptic number.

1202101021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202101021111 is an equidigital number, since it uses as much as digits as its factorization.

1202101021111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1202101021111 its reverse (1111201012021), we get a palindrome (2313302033132).

The spelling of 1202101021111 in words is "one trillion, two hundred two billion, one hundred one million, twenty-one thousand, one hundred eleven".