121012010122011 has 4 divisors (see below), whose sum is σ = 161349346829352. Its totient is φ = 80674673414672.

The previous prime is 121012010121973. The next prime is 121012010122057. The reversal of 121012010122011 is 110221010210121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121012010122011 - 2¹¹ = 121012010119963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121012010122111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20168668353666 + ... + 20168668353671.

It is an arithmetic number, because the mean of its divisors is an integer number (40337336707338).

Almost surely, 2^{121012010122011} is an apocalyptic number.

121012010122011 is a deficient number, since it is larger than the sum of its proper divisors (40337336707341).

121012010122011 is an equidigital number, since it uses as much as digits as its factorization.

121012010122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40337336707340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121012010122011 its reverse (110221010210121), we get a palindrome (231233020332132).

The spelling of 121012010122011 in words is "one hundred twenty-one trillion, twelve billion, ten million, one hundred twenty-two thousand, eleven".