102121001011111 has 8 divisors (see below), whose sum is σ = 102764130861600. Its totient is φ = 101479822997280.

The previous prime is 102121001011093. The next prime is 102121001011151. The reversal of 102121001011111 is 111110100121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102121001011111 - 2⁵ = 102121001011079 is a prime.

It is a super-2 number, since 2×102121001011111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121001011091 and 102121001011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121001011151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487854195 + ... + 488063476.

It is an arithmetic number, because the mean of its divisors is an integer number (12845516357700).

Almost surely, 2^{102121001011111} is an apocalyptic number.

102121001011111 is a deficient number, since it is larger than the sum of its proper divisors (643129850489).

102121001011111 is an equidigital number, since it uses as much as digits as its factorization.

102121001011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975918329.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 102121001011111 its reverse (111110100121201), we get a palindrome (213231101132312).

The spelling of 102121001011111 in words is "one hundred two trillion, one hundred twenty-one billion, one million, eleven thousand, one hundred eleven".