1011220001211 has 64 divisors (see below), whose sum is σ = 1677179381760. Its totient is φ = 528665978880.

The previous prime is 1011220001189. The next prime is 1011220001237. The reversal of 1011220001211 is 1121000221101.

It is not a de Polignac number, because 1011220001211 - 2⁵ = 1011220001179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011220001291) 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 in 63 ways as a sum of consecutive naturals, for example, 14614266 + ... + 14683296.

It is an arithmetic number, because the mean of its divisors is an integer number (26205927840).

Almost surely, 2^{1011220001211} is an apocalyptic number.

1011220001211 is a deficient number, since it is larger than the sum of its proper divisors (665959380549).

1011220001211 is a wasteful number, since it uses less digits than its factorization.

1011220001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70204.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011220001211 its reverse (1121000221101), we get a palindrome (2132220222312).

The spelling of 1011220001211 in words is "one trillion, eleven billion, two hundred twenty million, one thousand, two hundred eleven".