1012201012211 has 4 divisors (see below), whose sum is σ = 1012203331392. Its totient is φ = 1012198693032.

The previous prime is 1012201012201. The next prime is 1012201012217. The reversal of 1012201012211 is 1122101022101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012201012211 is a prime.

It is a super-2 number, since 2×1012201012211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012201012217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285080 + ... + 1451093.

It is an arithmetic number, because the mean of its divisors is an integer number (253050832848).

Almost surely, 2^{1012201012211} is an apocalyptic number.

1012201012211 is a deficient number, since it is larger than the sum of its proper divisors (2319181).

1012201012211 is an equidigital number, since it uses as much as digits as its factorization.

1012201012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319180.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012201012211 its reverse (1122101022101), we get a palindrome (2134302034312).

The spelling of 1012201012211 in words is "one trillion, twelve billion, two hundred one million, twelve thousand, two hundred eleven".