201010222211220 has 144 divisors (see below), whose sum is σ = 632405956448448. Its totient is φ = 53594899810560.

The previous prime is 201010222211177. The next prime is 201010222211291. The reversal of 201010222211220 is 22112222010102.

It is a happy number.

201010222211220 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 10 + 222 + 211 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201010222211193 and 201010222211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30309115 + ... + 36340925.

It is an arithmetic number, because the mean of its divisors is an integer number (4391708030892).

Almost surely, 2^{201010222211220} is an apocalyptic number.

201010222211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201010222211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316202978224224).

201010222211220 is an abundant number, since it is smaller than the sum of its proper divisors (431395734237228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201010222211220 is a wasteful number, since it uses less digits than its factorization.

201010222211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6038692 (or 6038678 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201010222211220 its reverse (22112222010102), we get a palindrome (223122444221322).

The spelling of 201010222211220 in words is "two hundred one trillion, ten billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty".