1011211212203 has 2 divisors, whose sum is σ = 1011211212204. Its totient is φ = 1011211212202.

The previous prime is 1011211212119. The next prime is 1011211212227. The reversal of 1011211212203 is 3022121121101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011211212203 - 2¹² = 1011211208107 is a prime.

It is a super-2 number, since 2×1011211212203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1011211242203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505605606101 + 505605606102.

It is an arithmetic number, because the mean of its divisors is an integer number (505605606102).

Almost surely, 2^{1011211212203} is an apocalyptic number.

1011211212203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011211212203 is an equidigital number, since it uses as much as digits as its factorization.

1011211212203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1011211212203 its reverse (3022121121101), we get a palindrome (4033332333304).

The spelling of 1011211212203 in words is "one trillion, eleven billion, two hundred eleven million, two hundred twelve thousand, two hundred three".