1021211200101 has 8 divisors (see below), whose sum is σ = 1361678893344. Its totient is φ = 680775486800.

The previous prime is 1021211200099. The next prime is 1021211200151. The reversal of 1021211200101 is 1010021121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021211200101 - 2¹ = 1021211200099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021211200151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7920375 + ... + 8048276.

It is an arithmetic number, because the mean of its divisors is an integer number (170209861668).

Almost surely, 2^{1021211200101} is an apocalyptic number.

It is an amenable number.

1021211200101 is a deficient number, since it is larger than the sum of its proper divisors (340467693243).

1021211200101 is a wasteful number, since it uses less digits than its factorization.

1021211200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15989971.

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

Adding to 1021211200101 its reverse (1010021121201), we get a palindrome (2031232321302).

The spelling of 1021211200101 in words is "one trillion, twenty-one billion, two hundred eleven million, two hundred thousand, one hundred one".