201000200221955 has 32 divisors (see below), whose sum is σ = 253147084016256. Its totient is φ = 152916737357824.

The previous prime is 201000200221939. The next prime is 201000200221957. The reversal of 201000200221955 is 559122002000102.

It is a cyclic number.

It is not a de Polignac number, because 201000200221955 - 2⁴ = 201000200221939 is a prime.

It is a super-4 number, since 4×201000200221955⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000200221957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972995899 + ... + 1973097771.

It is an arithmetic number, because the mean of its divisors is an integer number (7910846375508).

Almost surely, 2^{201000200221955} is an apocalyptic number.

201000200221955 is a deficient number, since it is larger than the sum of its proper divisors (52146883794301).

201000200221955 is a wasteful number, since it uses less digits than its factorization.

201000200221955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201247.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 201000200221955 in words is "two hundred one trillion, two hundred million, two hundred twenty-one thousand, nine hundred fifty-five".