201011021022 has 256 divisors, whose sum is σ = 498845952000. Its totient is φ = 52792836096.

The previous prime is 201011021017. The next prime is 201011021027. The reversal of 201011021022 is 220120110102.

It is an interprime number because it is at equal distance from previous prime (201011021017) and next prime (201011021027).

It is a junction number, because it is equal to n+sod(n) for n = 201011020989 and 201011021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011021027) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 338972758 + ... + 338973350.

It is an arithmetic number, because the mean of its divisors is an integer number (1948617000).

Almost surely, 2^201011021022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201011021022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249422976000).

201011021022 is an abundant number, since it is smaller than the sum of its proper divisors (297834930978).

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

201011021022 is a wasteful number, since it uses less digits than its factorization.

201011021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201011021022 its reverse (220120110102), we get a palindrome (421131131124).

The spelling of 201011021022 in words is "two hundred one billion, eleven million, twenty-one thousand, twenty-two".