201572220652 has 48 divisors (see below), whose sum is σ = 388681524000. Its totient is φ = 90705692160.

The previous prime is 201572220611. The next prime is 201572220671. The reversal of 201572220652 is 256022275102.

It is a super-3 number, since 3×201572220652³ (a number of 35 digits) contains 333 as substring.

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, 5800224 + ... + 5834872.

It is an arithmetic number, because the mean of its divisors is an integer number (8097531750).

Almost surely, 2^201572220652 is an apocalyptic number.

201572220652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201572220652 is a deficient number, since it is larger than the sum of its proper divisors (187109303348).

201572220652 is a wasteful number, since it uses less digits than its factorization.

201572220652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35986 (or 35984 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 201572220652 its reverse (256022275102), we get a palindrome (457594495754).

It can be divided in two parts, 201572 and 220652, that added together give a palindrome (422224).

The spelling of 201572220652 in words is "two hundred one billion, five hundred seventy-two million, two hundred twenty thousand, six hundred fifty-two".