201010001022 has 48 divisors (see below), whose sum is σ = 458575877760. Its totient is φ = 63458563536.

The previous prime is 201010000943. The next prime is 201010001029. The reversal of 201010001022 is 220100010102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201010000995 and 201010001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010001029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1130223 + ... + 1295925.

It is an arithmetic number, because the mean of its divisors is an integer number (9553664120).

Almost surely, 2^201010001022 is an apocalyptic number.

201010001022 is an abundant number, since it is smaller than the sum of its proper divisors (257565876738).

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

201010001022 is a wasteful number, since it uses less digits than its factorization.

201010001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169277 (or 169274 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 201010001022 its reverse (220100010102), we get a palindrome (421110011124).

The spelling of 201010001022 in words is "two hundred one billion, ten million, one thousand, twenty-two".