110101220001 has 40 divisors (see below), whose sum is σ = 175154036904. Its totient is φ = 68683645440.

The previous prime is 110101219999. The next prime is 110101220017. The reversal of 110101220001 is 100022101011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18137624976 + 91963595025 = 134676^2 + 303255^2 .

It is not a de Polignac number, because 110101220001 - 2¹ = 110101219999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (110101220101) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7131 + ... + 469311.

Almost surely, 2^110101220001 is an apocalyptic number.

It is an amenable number.

110101220001 is a deficient number, since it is larger than the sum of its proper divisors (65052816903).

110101220001 is a wasteful number, since it uses less digits than its factorization.

110101220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462383 (or 462374 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 110101220001 its reverse (100022101011), we get a palindrome (210123321012).

The spelling of 110101220001 in words is "one hundred ten billion, one hundred one million, two hundred twenty thousand, one".