101215215534 has 16 divisors (see below), whose sum is σ = 209410791120. Its totient is φ = 32575011840.

The previous prime is 101215215511. The next prime is 101215215539. The reversal of 101215215534 is 435512512101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101215215539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290848147 + ... + 290848494.

It is an arithmetic number, because the mean of its divisors is an integer number (13088174445).

Almost surely, 2^101215215534 is an apocalyptic number.

101215215534 is an abundant number, since it is smaller than the sum of its proper divisors (108195575586).

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

101215215534 is a wasteful number, since it uses less digits than its factorization.

101215215534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581696675.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 101215215534 its reverse (435512512101), we get a palindrome (536727727635).

The spelling of 101215215534 in words is "one hundred one billion, two hundred fifteen million, two hundred fifteen thousand, five hundred thirty-four".