121012000001 has 2 divisors, whose sum is σ = 121012000002. Its totient is φ = 121012000000.

The previous prime is 121011999991. The next prime is 121012000003. The reversal of 121012000001 is 100000210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118980154225 + 2031845776 = 344935^2 + 45076^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012000001 - 2⁶ = 121011999937 is a prime.

Together with 121012000003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121012000003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506000000 + 60506000001.

It is an arithmetic number, because the mean of its divisors is an integer number (60506000001).

Almost surely, 2^121012000001 is an apocalyptic number.

It is an amenable number.

121012000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012000001 is an equidigital number, since it uses as much as digits as its factorization.

121012000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 121012000001 its reverse (100000210121), we get a palindrome (221012210122).

It can be divided in two parts, 12101 and 2000001, that added together give a palindrome (2012102).

The spelling of 121012000001 in words is "one hundred twenty-one billion, twelve million, one", and thus it is an aban number.