101021202001 has 4 divisors (see below), whose sum is σ = 102444035904. Its totient is φ = 99598368100.

The previous prime is 101021201989. The next prime is 101021202013. The reversal of 101021202001 is 100202120101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100202120101 = 7879 ⋅12717619.

It is an interprime number because it is at equal distance from previous prime (101021201989) and next prime (101021202013).

It is a cyclic number.

It is not a de Polignac number, because 101021202001 - 2¹⁹ = 101020677713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101021202031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711416845 + ... + 711416986.

It is an arithmetic number, because the mean of its divisors is an integer number (25611008976).

Almost surely, 2^101021202001 is an apocalyptic number.

It is an amenable number.

101021202001 is a deficient number, since it is larger than the sum of its proper divisors (1422833903).

101021202001 is an equidigital number, since it uses as much as digits as its factorization.

101021202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422833902.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101021202001 its reverse (100202120101), we get a palindrome (201223322102).

The spelling of 101021202001 in words is "one hundred one billion, twenty-one million, two hundred two thousand, one".