201022215155 has 16 divisors (see below), whose sum is σ = 244647324864. Its totient is φ = 158537756160.

The previous prime is 201022215133. The next prime is 201022215217. The reversal of 201022215155 is 551512220102.

It is a happy number.

It is not a de Polignac number, because 201022215155 - 2¹⁴ = 201022198771 is a prime.

It is a super-2 number, since 2×201022215155² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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, 5141159 + ... + 5180111.

It is an arithmetic number, because the mean of its divisors is an integer number (15290457804).

Almost surely, 2^201022215155 is an apocalyptic number.

201022215155 is a deficient number, since it is larger than the sum of its proper divisors (43625109709).

201022215155 is a wasteful number, since it uses less digits than its factorization.

201022215155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53566.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 201022215155 its reverse (551512220102), we get a palindrome (752534435257).

The spelling of 201022215155 in words is "two hundred one billion, twenty-two million, two hundred fifteen thousand, one hundred fifty-five".