201254455101 has 48 divisors (see below), whose sum is σ = 316118381184. Its totient is φ = 111556709376.

The previous prime is 201254455091. The next prime is 201254455121. The reversal of 201254455101 is 101554452102.

It is not a de Polignac number, because 201254455101 - 2⁹ = 201254454589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201254455121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5222761 + ... + 5261153.

It is an arithmetic number, because the mean of its divisors is an integer number (6585799608).

Almost surely, 2^201254455101 is an apocalyptic number.

201254455101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201254455101 is a deficient number, since it is larger than the sum of its proper divisors (114863926083).

201254455101 is a wasteful number, since it uses less digits than its factorization.

201254455101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38610 (or 38563 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 201254455101 in words is "two hundred one billion, two hundred fifty-four million, four hundred fifty-five thousand, one hundred one".