1022020201012 has 6 divisors (see below), whose sum is σ = 1788535351778. Its totient is φ = 511010100504.

The previous prime is 1022020201009. The next prime is 1022020201019. The reversal of 1022020201012 is 2101020202201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 624469774756 + 397550426256 = 790234^2 + 630516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022020200983 and 1022020201001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022020201019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127752525123 + ... + 127752525130.

Almost surely, 2^{1022020201012} is an apocalyptic number.

It is an amenable number.

1022020201012 is a deficient number, since it is larger than the sum of its proper divisors (766515150766).

1022020201012 is a wasteful number, since it uses less digits than its factorization.

1022020201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255505050257 (or 255505050255 counting only the distinct ones).

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

Adding to 1022020201012 its reverse (2101020202201), we get a palindrome (3123040403213).

The spelling of 1022020201012 in words is "one trillion, twenty-two billion, twenty million, two hundred one thousand, twelve".