101001121021019 has 2 divisors, whose sum is σ = 101001121021020. Its totient is φ = 101001121021018.

The previous prime is 101001121020979. The next prime is 101001121021049. The reversal of 101001121021019 is 910120121100101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101001121021019 - 2¹² = 101001121016923 is a prime.

It is a super-2 number, since 2×101001121021019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101001121021049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500560510509 + 50500560510510.

It is an arithmetic number, because the mean of its divisors is an integer number (50500560510510).

Almost surely, 2^{101001121021019} is an apocalyptic number.

101001121021019 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001121021019 is an equidigital number, since it uses as much as digits as its factorization.

101001121021019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 101001121021019 in words is "one hundred one trillion, one billion, one hundred twenty-one million, twenty-one thousand, nineteen".