1022010221221 has 8 divisors (see below), whose sum is σ = 1115054781984. Its totient is φ = 928988083920.

The previous prime is 1022010221129. The next prime is 1022010221231. The reversal of 1022010221221 is 1221220102201.

It is a happy number.

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 1022010221221 - 2¹¹ = 1022010219173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022010221195 and 1022010221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022010221231) 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, 5510491 + ... + 5692936.

It is an arithmetic number, because the mean of its divisors is an integer number (139381847748).

Almost surely, 2^{1022010221221} is an apocalyptic number.

1022010221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022010221221 is a deficient number, since it is larger than the sum of its proper divisors (93044560763).

1022010221221 is a wasteful number, since it uses less digits than its factorization.

1022010221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211731.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1022010221221 its reverse (1221220102201), we get a palindrome (2243230323422).

The spelling of 1022010221221 in words is "one trillion, twenty-two billion, ten million, two hundred twenty-one thousand, two hundred twenty-one".