201011221222 has 32 divisors (see below), whose sum is σ = 359611200000. Its totient is φ = 82393331328.

The previous prime is 201011221217. The next prime is 201011221249. The reversal of 201011221222 is 222122110102.

It is a happy number.

It is a super-2 number, since 2×201011221222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201011221196 and 201011221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3610654 + ... + 3665902.

It is an arithmetic number, because the mean of its divisors is an integer number (11237850000).

Almost surely, 2^201011221222 is an apocalyptic number.

201011221222 is a deficient number, since it is larger than the sum of its proper divisors (158599978778).

201011221222 is a wasteful number, since it uses less digits than its factorization.

201011221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66580.

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

Adding to 201011221222 its reverse (222122110102), we get a palindrome (423133331324).

The spelling of 201011221222 in words is "two hundred one billion, eleven million, two hundred twenty-one thousand, two hundred twenty-two".