1021020212203 has 2 divisors, whose sum is σ = 1021020212204. Its totient is φ = 1021020212202.

The previous prime is 1021020212161. The next prime is 1021020212209. The reversal of 1021020212203 is 3022120201201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021020212203 - 2¹³ = 1021020204011 is a prime.

It is a super-2 number, since 2×1021020212203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1021020212209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510510106101 + 510510106102.

It is an arithmetic number, because the mean of its divisors is an integer number (510510106102).

Almost surely, 2^{1021020212203} is an apocalyptic number.

1021020212203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021020212203 is an equidigital number, since it uses as much as digits as its factorization.

1021020212203 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 16.

Adding to 1021020212203 its reverse (3022120201201), we get a palindrome (4043140413404).

The spelling of 1021020212203 in words is "one trillion, twenty-one billion, twenty million, two hundred twelve thousand, two hundred three".