101553122221544 has 64 divisors (see below), whose sum is σ = 220063087440000. Its totient is φ = 43032934315008.

The previous prime is 101553122221519. The next prime is 101553122221567. The reversal of 101553122221544 is 445122221355101.

It is a junction number, because it is equal to n+sod(n) for n = 101553122221498 and 101553122221507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315919652 + ... + 316240940.

It is an arithmetic number, because the mean of its divisors is an integer number (3438485741250).

Almost surely, 2^{101553122221544} is an apocalyptic number.

101553122221544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

101553122221544 is an abundant number, since it is smaller than the sum of its proper divisors (118509965218456).

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

101553122221544 is a wasteful number, since it uses less digits than its factorization.

101553122221544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384810 (or 384806 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 101553122221544 its reverse (445122221355101), we get a palindrome (546675343576645).

The spelling of 101553122221544 in words is "one hundred one trillion, five hundred fifty-three billion, one hundred twenty-two million, two hundred twenty-one thousand, five hundred forty-four".