201100021221022 has 64 divisors (see below), whose sum is σ = 377015758156800. Its totient is φ = 78156577324800.

The previous prime is 201100021220999. The next prime is 201100021221023. The reversal of 201100021221022 is 220122120001102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201100021220987 and 201100021221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100021221023) 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, 113227122 + ... + 114989482.

It is an arithmetic number, because the mean of its divisors is an integer number (5890871221200).

Almost surely, 2^{201100021221022} is an apocalyptic number.

201100021221022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201100021221022 is a deficient number, since it is larger than the sum of its proper divisors (175915736935778).

201100021221022 is a wasteful number, since it uses less digits than its factorization.

201100021221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764217.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201100021221022 its reverse (220122120001102), we get a palindrome (421222141222124).

The spelling of 201100021221022 in words is "two hundred one trillion, one hundred billion, twenty-one million, two hundred twenty-one thousand, twenty-two".