1022002100212 has 6 divisors (see below), whose sum is σ = 1788503675378. Its totient is φ = 511001050104.

The previous prime is 1022002100201. The next prime is 1022002100219. The reversal of 1022002100212 is 2120012002201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 899394276496 + 122607823716 = 948364^2 + 350154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022002100192 and 1022002100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022002100219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127750262523 + ... + 127750262530.

Almost surely, 2^{1022002100212} is an apocalyptic number.

It is an amenable number.

1022002100212 is a deficient number, since it is larger than the sum of its proper divisors (766501575166).

1022002100212 is a wasteful number, since it uses less digits than its factorization.

1022002100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255500525057 (or 255500525055 counting only the distinct ones).

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

Adding to 1022002100212 its reverse (2120012002201), we get a palindrome (3142014102413).

The spelling of 1022002100212 in words is "one trillion, twenty-two billion, two million, one hundred thousand, two hundred twelve".