1210020230221 has 8 divisors (see below), whose sum is σ = 1377414333504. Its totient is φ = 1052191504320.

The previous prime is 1210020230213. The next prime is 1210020230231. The reversal of 1210020230221 is 1220320200121.

It is a happy number.

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

It is not a de Polignac number, because 1210020230221 - 2³ = 1210020230213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210020230195 and 1210020230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210020230231) 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, 2391344076 + ... + 2391344581.

It is an arithmetic number, because the mean of its divisors is an integer number (172176791688).

Almost surely, 2^{1210020230221} is an apocalyptic number.

1210020230221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210020230221 is a deficient number, since it is larger than the sum of its proper divisors (167394103283).

1210020230221 is a wasteful number, since it uses less digits than its factorization.

1210020230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782688691.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1210020230221 its reverse (1220320200121), we get a palindrome (2430340430342).

The spelling of 1210020230221 in words is "one trillion, two hundred ten billion, twenty million, two hundred thirty thousand, two hundred twenty-one".