102111212001121 has 16 divisors (see below), whose sum is σ = 105640688095488. Its totient is φ = 98631271728000.

The previous prime is 102111212001119. The next prime is 102111212001151. The reversal of 102111212001121 is 121100212111201.

It is a cyclic number.

It is not a de Polignac number, because 102111212001121 - 2¹ = 102111212001119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102111212001095 and 102111212001104.

It is not an unprimeable number, because it can be changed into a prime (102111212001151) 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, 138301486 + ... + 139037848.

It is an arithmetic number, because the mean of its divisors is an integer number (6602543005968).

Almost surely, 2^{102111212001121} is an apocalyptic number.

It is an amenable number.

102111212001121 is a deficient number, since it is larger than the sum of its proper divisors (3529476094367).

102111212001121 is a wasteful number, since it uses less digits than its factorization.

102111212001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769992.

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

Adding to 102111212001121 its reverse (121100212111201), we get a palindrome (223211424112322).

The spelling of 102111212001121 in words is "one hundred two trillion, one hundred eleven billion, two hundred twelve million, one thousand, one hundred twenty-one".