100121210022001 has 24 divisors (see below), whose sum is σ = 122604458028000. Its totient is φ = 81296753134464.

The previous prime is 100121210021983. The next prime is 100121210022017. The reversal of 100121210022001 is 100220012121001.

It is not a de Polignac number, because 100121210022001 - 2⁵ = 100121210021969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100121210022601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13130185 + ... + 19303993.

It is an arithmetic number, because the mean of its divisors is an integer number (5108519084500).

Almost surely, 2^{100121210022001} is an apocalyptic number.

It is an amenable number.

100121210022001 is a deficient number, since it is larger than the sum of its proper divisors (22483248005999).

100121210022001 is a wasteful number, since it uses less digits than its factorization.

100121210022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191261 (or 6191254 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100121210022001 its reverse (100220012121001), we get a palindrome (200341222143002).

The spelling of 100121210022001 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten million, twenty-two thousand, one".