10212620155543 has 32 divisors (see below), whose sum is σ = 11241690800256. Its totient is φ = 9219507568128.

The previous prime is 10212620155537. The next prime is 10212620155553. The reversal of 10212620155543 is 34555102621201.

It is not a de Polignac number, because 10212620155543 - 2⁵ = 10212620155511 is a prime.

It is a super-2 number, since 2×10212620155543² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212620155523) 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, 422049321 + ... + 422073517.

It is an arithmetic number, because the mean of its divisors is an integer number (351302837508).

Almost surely, 2^{10212620155543} is an apocalyptic number.

10212620155543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10212620155543 is a deficient number, since it is larger than the sum of its proper divisors (1029070644713).

10212620155543 is a wasteful number, since it uses less digits than its factorization.

10212620155543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26203.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 10212620155543 its reverse (34555102621201), we get a palindrome (44767722776744).

The spelling of 10212620155543 in words is "ten trillion, two hundred twelve billion, six hundred twenty million, one hundred fifty-five thousand, five hundred forty-three".