21060023622 has 24 divisors (see below), whose sum is σ = 46297243608. Its totient is φ = 6381825120.

The previous prime is 21060023617. The next prime is 21060023671. The reversal of 21060023622 is 22632006012.

It is a junction number, because it is equal to n+sod(n) for n = 21060023592 and 21060023601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14503423 + ... + 14504874.

It is an arithmetic number, because the mean of its divisors is an integer number (1929051817).

Almost surely, 2^21060023622 is an apocalyptic number.

21060023622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21060023622 is an abundant number, since it is smaller than the sum of its proper divisors (25237219986).

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

21060023622 is a wasteful number, since it uses less digits than its factorization.

21060023622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29008324 (or 29008313 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21060023622 its reverse (22632006012), we get a palindrome (43692029634).

The spelling of 21060023622 in words is "twenty-one billion, sixty million, twenty-three thousand, six hundred twenty-two".