201021031231022 has 8 divisors (see below), whose sum is σ = 302135818485000. Its totient is φ = 100309091736024.

The previous prime is 201021031230991. The next prime is 201021031231063. The reversal of 201021031231022 is 220132130120102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201021031230985 and 201021031231003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100711938497 + ... + 100711940492.

It is an arithmetic number, because the mean of its divisors is an integer number (37766977310625).

Almost surely, 2^{201021031231022} is an apocalyptic number.

201021031231022 is a deficient number, since it is larger than the sum of its proper divisors (101114787253978).

201021031231022 is a wasteful number, since it uses less digits than its factorization.

201021031231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201423879490.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201021031231022 its reverse (220132130120102), we get a palindrome (421153161351124).

The spelling of 201021031231022 in words is "two hundred one trillion, twenty-one billion, thirty-one million, two hundred thirty-one thousand, twenty-two".