10212551550 has 96 divisors (see below), whose sum is σ = 29111752800. Its totient is φ = 2629428480.

The previous prime is 10212551539. The next prime is 10212551551. The reversal of 10212551550 is 5515521201.

10212551550 is a `hidden beast` number, since 102 + 1 + 2 + 5 + 5 + 1 + 550 = 666.

It is a super-2 number, since 2×10212551550² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212551551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91279 + ... + 169578.

It is an arithmetic number, because the mean of its divisors is an integer number (303247425).

Almost surely, 2^10212551550 is an apocalyptic number.

10212551550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10212551550 is an abundant number, since it is smaller than the sum of its proper divisors (18899201250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10212551550 is a wasteful number, since it uses less digits than its factorization.

10212551550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260907 (or 260896 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The spelling of 10212551550 in words is "ten billion, two hundred twelve million, five hundred fifty-one thousand, five hundred fifty".