1202211001 has 2 divisors, whose sum is σ = 1202211002. Its totient is φ = 1202211000.

The previous prime is 1202210983. The next prime is 1202211029. The reversal of 1202211001 is 1001122021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1112889600 + 89321401 = 33360^2 + 9451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202211001 - 2⁹ = 1202210489 is a prime.

It is a super-2 number, since 2×1202211001² = 2890622581850844002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1202211091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601105500 + 601105501.

It is an arithmetic number, because the mean of its divisors is an integer number (601105501).

Almost surely, 2^1202211001 is an apocalyptic number.

It is an amenable number.

1202211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202211001 is an equidigital number, since it uses as much as digits as its factorization.

1202211001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1202211001 is about 34672.9145155120. The cubic root of 1202211001 is about 1063.3108185229.

Adding to 1202211001 its reverse (1001122021), we get a palindrome (2203333022).

The spelling of 1202211001 in words is "one billion, two hundred two million, two hundred eleven thousand, one".