21110022012201 has 32 divisors (see below), whose sum is σ = 28777023100800. Its totient is φ = 13760062977024.

The previous prime is 21110022012197. The next prime is 21110022012241. The reversal of 21110022012201 is 10221022001112.

It is not a de Polignac number, because 21110022012201 - 2² = 21110022012197 is a prime.

It is a super-2 number, since 2×21110022012201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21110022012241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109909950 + ... + 110101848.

It is an arithmetic number, because the mean of its divisors is an integer number (899281971900).

Almost surely, 2^{21110022012201} is an apocalyptic number.

It is an amenable number.

21110022012201 is a deficient number, since it is larger than the sum of its proper divisors (7667001088599).

21110022012201 is a wasteful number, since it uses less digits than its factorization.

21110022012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194345.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110022012201 its reverse (10221022001112), we get a palindrome (31331044013313).

The spelling of 21110022012201 in words is "twenty-one trillion, one hundred ten billion, twenty-two million, twelve thousand, two hundred one".