102021120101111 has 32 divisors (see below), whose sum is σ = 107337426134400. Its totient is φ = 96839064000000.

The previous prime is 102021120101107. The next prime is 102021120101129. The reversal of 102021120101111 is 111101021120201.

It is a cyclic number.

It is not a de Polignac number, because 102021120101111 - 2² = 102021120101107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021120101141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021172261 + ... + 1021272161.

It is an arithmetic number, because the mean of its divisors is an integer number (3354294566700).

Almost surely, 2^{102021120101111} is an apocalyptic number.

102021120101111 is a deficient number, since it is larger than the sum of its proper divisors (5316306033289).

102021120101111 is a wasteful number, since it uses less digits than its factorization.

102021120101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102491.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102021120101111 its reverse (111101021120201), we get a palindrome (213122141221312).

The spelling of 102021120101111 in words is "one hundred two trillion, twenty-one billion, one hundred twenty million, one hundred one thousand, one hundred eleven".