101202112121111 has 4 divisors (see below), whose sum is σ = 102147926253192. Its totient is φ = 100256297989032.

The previous prime is 101202112121069. The next prime is 101202112121177. The reversal of 101202112121111 is 111121211202101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101202112121111 - 2¹⁴ = 101202112104727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101202112121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101208112121111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472907065880 + ... + 472907066093.

It is an arithmetic number, because the mean of its divisors is an integer number (25536981563298).

Almost surely, 2^{101202112121111} is an apocalyptic number.

101202112121111 is a deficient number, since it is larger than the sum of its proper divisors (945814132081).

101202112121111 is an equidigital number, since it uses as much as digits as its factorization.

101202112121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945814132080.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 101202112121111 its reverse (111121211202101), we get a palindrome (212323323323212).

The spelling of 101202112121111 in words is "one hundred one trillion, two hundred two billion, one hundred twelve million, one hundred twenty-one thousand, one hundred eleven".