101200010555 has 32 divisors (see below), whose sum is σ = 146286965760. Its totient is φ = 65654789760.

The previous prime is 101200010501. The next prime is 101200010567. The reversal of 101200010555 is 555010002101.

It is a happy number.

It is not a de Polignac number, because 101200010555 - 2¹⁶ = 101199945019 is a prime.

It is a super-2 number, since 2×101200010555² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402890 + ... + 603920.

It is an arithmetic number, because the mean of its divisors is an integer number (4571467680).

Almost surely, 2^101200010555 is an apocalyptic number.

101200010555 is a deficient number, since it is larger than the sum of its proper divisors (45086955205).

101200010555 is a wasteful number, since it uses less digits than its factorization.

101200010555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201819.

The product of its (nonzero) digits is 250, while the sum is 20.

Adding to 101200010555 its reverse (555010002101), we get a palindrome (656210012656).

The spelling of 101200010555 in words is "one hundred one billion, two hundred million, ten thousand, five hundred fifty-five".