1012201201021 has 8 divisors (see below), whose sum is σ = 1029023961984. Its totient is φ = 995458358880.

The previous prime is 1012201201013. The next prime is 1012201201043. The reversal of 1012201201021 is 1201021022101.

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 1012201201021 - 2³ = 1012201201013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012201200992 and 1012201201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201201061) 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, 19954165 + ... + 20004826.

It is an arithmetic number, because the mean of its divisors is an integer number (128627995248).

Almost surely, 2^{1012201201021} is an apocalyptic number.

It is an amenable number.

1012201201021 is a deficient number, since it is larger than the sum of its proper divisors (16822760963).

1012201201021 is an equidigital number, since it uses as much as digits as its factorization.

1012201201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39959411.

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

Adding to 1012201201021 its reverse (1201021022101), we get a palindrome (2213222223122).

The spelling of 1012201201021 in words is "one trillion, twelve billion, two hundred one million, two hundred one thousand, twenty-one".