10121011012187 has 2 divisors, whose sum is σ = 10121011012188. Its totient is φ = 10121011012186.

The previous prime is 10121011012181. The next prime is 10121011012271. The reversal of 10121011012187 is 78121011012101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10121011012187 - 2²⁸ = 10120742576731 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121011012181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060505506093 + 5060505506094.

It is an arithmetic number, because the mean of its divisors is an integer number (5060505506094).

Almost surely, 2^{10121011012187} is an apocalyptic number.

10121011012187 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121011012187 is an equidigital number, since it uses as much as digits as its factorization.

10121011012187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 26.

Adding to 10121011012187 its reverse (78121011012101), we get a palindrome (88242022024288).

The spelling of 10121011012187 in words is "ten trillion, one hundred twenty-one billion, eleven million, twelve thousand, one hundred eighty-seven".