121010102111 has 8 divisors (see below), whose sum is σ = 125032539648. Its totient is φ = 116995095000.

The previous prime is 121010102099. The next prime is 121010102113. The reversal of 121010102111 is 111201010121.

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 121010102111 - 2¹⁸ = 121009839967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010102092 and 121010102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010102113) 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, 1824485 + ... + 1889646.

It is an arithmetic number, because the mean of its divisors is an integer number (15629067456).

Almost surely, 2^121010102111 is an apocalyptic number.

121010102111 is a deficient number, since it is larger than the sum of its proper divisors (4022437537).

121010102111 is a wasteful number, since it uses less digits than its factorization.

121010102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715213.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121010102111 its reverse (111201010121), we get a palindrome (232211112232).

The spelling of 121010102111 in words is "one hundred twenty-one billion, ten million, one hundred two thousand, one hundred eleven".