121000202021087 has 2 divisors, whose sum is σ = 121000202021088. Its totient is φ = 121000202021086.

The previous prime is 121000202021077. The next prime is 121000202021107. The reversal of 121000202021087 is 780120202000121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121000202021087 - 2⁴⁶ = 50631457843423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121000202021077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500101010543 + 60500101010544.

It is an arithmetic number, because the mean of its divisors is an integer number (60500101010544).

Almost surely, 2^{121000202021087} is an apocalyptic number.

121000202021087 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000202021087 is an equidigital number, since it uses as much as digits as its factorization.

121000202021087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 121000202021087 in words is "one hundred twenty-one trillion, two hundred two million, twenty-one thousand, eighty-seven".