1012210121001 has 16 divisors (see below), whose sum is σ = 1372379537088. Its totient is φ = 663434068800.

The previous prime is 1012210120979. The next prime is 1012210121047. The reversal of 1012210121001 is 1001210122101.

It is not a de Polignac number, because 1012210121001 - 2⁶ = 1012210120937 is a prime.

It is a super-3 number, since 3×1012210121001³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1012210121101) 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, 899931 + ... + 1683536.

It is an arithmetic number, because the mean of its divisors is an integer number (85773721068).

Almost surely, 2^{1012210121001} is an apocalyptic number.

It is an amenable number.

1012210121001 is a deficient number, since it is larger than the sum of its proper divisors (360169416087).

1012210121001 is a wasteful number, since it uses less digits than its factorization.

1012210121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585672.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1012210121001 its reverse (1001210122101), we get a palindrome (2013420243102).

The spelling of 1012210121001 in words is "one trillion, twelve billion, two hundred ten million, one hundred twenty-one thousand, one".