1022020012201 has 4 divisors (see below), whose sum is σ = 1023909144004. Its totient is φ = 1020130880400.

The previous prime is 1022020012171. The next prime is 1022020012289. The reversal of 1022020012201 is 1022100202201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 407489445801 + 614530566400 = 638349^2 + 783920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022020012201 - 2⁷ = 1022020012073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022020012501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944565090 + ... + 944566171.

It is an arithmetic number, because the mean of its divisors is an integer number (255977286001).

Almost surely, 2^{1022020012201} is an apocalyptic number.

It is an amenable number.

1022020012201 is a deficient number, since it is larger than the sum of its proper divisors (1889131803).

1022020012201 is an equidigital number, since it uses as much as digits as its factorization.

1022020012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889131802.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1022020012201 its reverse (1022100202201), we get a palindrome (2044120214402).

The spelling of 1022020012201 in words is "one trillion, twenty-two billion, twenty million, twelve thousand, two hundred one".