1022012301221 has 2 divisors, whose sum is σ = 1022012301222. Its totient is φ = 1022012301220.

The previous prime is 1022012301197. The next prime is 1022012301253. The reversal of 1022012301221 is 1221032102201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 737511676225 + 284500624996 = 858785^2 + 533386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022012301221 - 2³⁰ = 1020938559397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022012301221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022012321221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511006150610 + 511006150611.

It is an arithmetic number, because the mean of its divisors is an integer number (511006150611).

Almost surely, 2^{1022012301221} is an apocalyptic number.

It is an amenable number.

1022012301221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022012301221 is an equidigital number, since it uses as much as digits as its factorization.

1022012301221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1022012301221 its reverse (1221032102201), we get a palindrome (2243044403422).

The spelling of 1022012301221 in words is "one trillion, twenty-two billion, twelve million, three hundred one thousand, two hundred twenty-one".