1222211011101 has 16 divisors (see below), whose sum is σ = 1675521431808. Its totient is φ = 792000633600.

The previous prime is 1222211011097. The next prime is 1222211011121. The reversal of 1222211011101 is 1011101122221.

It is a happy number.

It is not a de Polignac number, because 1222211011101 - 2² = 1222211011097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222211011121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18300016 + ... + 18366681.

It is an arithmetic number, because the mean of its divisors is an integer number (104720089488).

Almost surely, 2^{1222211011101} is an apocalyptic number.

It is an amenable number.

1222211011101 is a deficient number, since it is larger than the sum of its proper divisors (453310420707).

1222211011101 is a wasteful number, since it uses less digits than its factorization.

1222211011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36667012.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1222211011101 its reverse (1011101122221), we get a palindrome (2233312133322).

It can be divided in two parts, 122221 and 1011101, that multiplied together give a palindrome (123577775321).

The spelling of 1222211011101 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, eleven thousand, one hundred one".