201011221022 has 4 divisors (see below), whose sum is σ = 301516831536. Its totient is φ = 100505610510.

The previous prime is 201011220967. The next prime is 201011221057. The reversal of 201011221022 is 220122110102.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 201011220988 and 201011221006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50252805254 + ... + 50252805257.

It is an arithmetic number, because the mean of its divisors is an integer number (75379207884).

Almost surely, 2^201011221022 is an apocalyptic number.

201011221022 is a deficient number, since it is larger than the sum of its proper divisors (100505610514).

201011221022 is a wasteful number, since it uses less digits than its factorization.

201011221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505610513.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201011221022 its reverse (220122110102), we get a palindrome (421133331124).

The spelling of 201011221022 in words is "two hundred one billion, eleven million, two hundred twenty-one thousand, twenty-two".