201451222545 has 16 divisors (see below), whose sum is σ = 322640165952. Its totient is φ = 107334582080.

The previous prime is 201451222543. The next prime is 201451222547. The reversal of 201451222545 is 545222154102.

It is an interprime number because it is at equal distance from previous prime (201451222543) and next prime (201451222547).

It is not a de Polignac number, because 201451222545 - 2¹ = 201451222543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201451222543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6613671 + ... + 6644060.

It is an arithmetic number, because the mean of its divisors is an integer number (20165010372).

Almost surely, 2^201451222545 is an apocalyptic number.

It is an amenable number.

201451222545 is a deficient number, since it is larger than the sum of its proper divisors (121188943407).

201451222545 is a wasteful number, since it uses less digits than its factorization.

201451222545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13258752.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 201451222545 its reverse (545222154102), we get a palindrome (746673376647).

The spelling of 201451222545 in words is "two hundred one billion, four hundred fifty-one million, two hundred twenty-two thousand, five hundred forty-five".