1012011100121 has 16 divisors (see below), whose sum is σ = 1224645179904. Its totient is φ = 816394512384.

The previous prime is 1012011100117. The next prime is 1012011100141. The reversal of 1012011100121 is 1210011102101.

It is a cyclic number.

It is not a de Polignac number, because 1012011100121 - 2² = 1012011100117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012011100141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9828521 + ... + 9930953.

It is an arithmetic number, because the mean of its divisors is an integer number (76540323744).

Almost surely, 2^{1012011100121} is an apocalyptic number.

It is an amenable number.

1012011100121 is a deficient number, since it is larger than the sum of its proper divisors (212634079783).

1012011100121 is a wasteful number, since it uses less digits than its factorization.

1012011100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185480.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1012011100121 its reverse (1210011102101), we get a palindrome (2222022202222).

The spelling of 1012011100121 in words is "one trillion, twelve billion, eleven million, one hundred thousand, one hundred twenty-one".