1021202102101 has 8 divisors (see below), whose sum is σ = 1023950096064. Its totient is φ = 1018456957440.

The previous prime is 1021202102077. The next prime is 1021202102111. The reversal of 1021202102101 is 1012012021201.

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 1021202102101 - 2⁷ = 1021202101973 is a prime.

It is a super-2 number, since 2×1021202102101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021202102111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6421 + ... + 1429141.

It is an arithmetic number, because the mean of its divisors is an integer number (127993762008).

Almost surely, 2^{1021202102101} is an apocalyptic number.

It is an amenable number.

1021202102101 is a deficient number, since it is larger than the sum of its proper divisors (2747993963).

1021202102101 is a wasteful number, since it uses less digits than its factorization.

1021202102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424651.

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

Adding to 1021202102101 its reverse (1012012021201), we get a palindrome (2033214123302).

The spelling of 1021202102101 in words is "one trillion, twenty-one billion, two hundred two million, one hundred two thousand, one hundred one".