1020001222211 has 2 divisors, whose sum is σ = 1020001222212. Its totient is φ = 1020001222210.

The previous prime is 1020001222199. The next prime is 1020001222277. The reversal of 1020001222211 is 1122221000201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020001222211 - 2²⁶ = 1019934113347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1020001222711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000611105 + 510000611106.

It is an arithmetic number, because the mean of its divisors is an integer number (510000611106).

Almost surely, 2^{1020001222211} is an apocalyptic number.

1020001222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020001222211 is an equidigital number, since it uses as much as digits as its factorization.

1020001222211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020001222211 its reverse (1122221000201), we get a palindrome (2142222222412).

The spelling of 1020001222211 in words is "one trillion, twenty billion, one million, two hundred twenty-two thousand, two hundred eleven".