1021201120221 has 8 divisors (see below), whose sum is σ = 1374326741664. Its totient is φ = 674438122800.

The previous prime is 1021201120207. The next prime is 1021201120259. The reversal of 1021201120221 is 1220211021201.

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

It is not a de Polignac number, because 1021201120221 - 2¹⁴ = 1021201103837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021201120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201120421) 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, 1590655630 + ... + 1590656271.

It is an arithmetic number, because the mean of its divisors is an integer number (171790842708).

Almost surely, 2^{1021201120221} is an apocalyptic number.

It is an amenable number.

1021201120221 is a deficient number, since it is larger than the sum of its proper divisors (353125621443).

1021201120221 is a wasteful number, since it uses less digits than its factorization.

1021201120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181312011.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021201120221 its reverse (1220211021201), we get a palindrome (2241412141422).

The spelling of 1021201120221 in words is "one trillion, twenty-one billion, two hundred one million, one hundred twenty thousand, two hundred twenty-one".