1211110022101 has 8 divisors (see below), whose sum is σ = 1384176689984. Its totient is φ = 1038056091840.

The previous prime is 1211110022069. The next prime is 1211110022113. The reversal of 1211110022101 is 1012200111121.

It is a happy number.

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 1211110022101 - 2⁵ = 1211110022069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211110022141) 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, 2979780 + ... + 3361741.

It is an arithmetic number, because the mean of its divisors is an integer number (173022086248).

Almost surely, 2^{1211110022101} is an apocalyptic number.

It is an amenable number.

1211110022101 is a deficient number, since it is larger than the sum of its proper divisors (173066667883).

1211110022101 is an equidigital number, since it uses as much as digits as its factorization.

1211110022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368811.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1211110022101 its reverse (1012200111121), we get a palindrome (2223310133222).

The spelling of 1211110022101 in words is "one trillion, two hundred eleven billion, one hundred ten million, twenty-two thousand, one hundred one".