21622251210270 has 32 divisors (see below), whose sum is σ = 51894552195360. Its totient is φ = 5765805957120.

The previous prime is 21622251210253. The next prime is 21622251210283. The reversal of 21622251210270 is 7201215222612.

It is a congruent number.

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, 6600115 + ... + 9316974.

It is an arithmetic number, because the mean of its divisors is an integer number (1621704756105).

Almost surely, 2^{21622251210270} is an apocalyptic number.

21622251210270 is an abundant number, since it is smaller than the sum of its proper divisors (30272300985090).

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

21622251210270 is a wasteful number, since it uses less digits than its factorization.

21622251210270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15962380.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 21622251210270 its reverse (7201215222612), we get a palindrome (28823466432882).

The spelling of 21622251210270 in words is "twenty-one trillion, six hundred twenty-two billion, two hundred fifty-one million, two hundred ten thousand, two hundred seventy".