121000210002111 has 16 divisors (see below), whose sum is σ = 180757070471808. Its totient is φ = 71351475184800.

The previous prime is 121000210002053. The next prime is 121000210002121. The reversal of 121000210002111 is 111200012000121.

It is not a de Polignac number, because 121000210002111 - 2⁶ = 121000210002047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000210002121) 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, 49549634325 + ... + 49549636766.

It is an arithmetic number, because the mean of its divisors is an integer number (11297316904488).

Almost surely, 2^{121000210002111} is an apocalyptic number.

121000210002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121000210002111 is a deficient number, since it is larger than the sum of its proper divisors (59756860469697).

121000210002111 is a wasteful number, since it uses less digits than its factorization.

121000210002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99099271142.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121000210002111 its reverse (111200012000121), we get a palindrome (232200222002232).

The spelling of 121000210002111 in words is "one hundred twenty-one trillion, two hundred ten million, two thousand, one hundred eleven".