1222121012011 has 8 divisors (see below), whose sum is σ = 1224510531840. Its totient is φ = 1219731694632.

The previous prime is 1222121012009. The next prime is 1222121012017. The reversal of 1222121012011 is 1102101212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222121012011 - 2¹ = 1222121012009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222121012017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18933330 + ... + 18997768.

It is an arithmetic number, because the mean of its divisors is an integer number (153063816480).

Almost surely, 2^{1222121012011} is an apocalyptic number.

1222121012011 is a deficient number, since it is larger than the sum of its proper divisors (2389519829).

1222121012011 is an equidigital number, since it uses as much as digits as its factorization.

1222121012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101225.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222121012011 its reverse (1102101212221), we get a palindrome (2324222224232).

It can be divided in two parts, 12221210 and 12011, that added together give a palindrome (12233221).

The spelling of 1222121012011 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, twelve thousand, eleven".