101222020655 has 16 divisors (see below), whose sum is σ = 138829039104. Its totient is φ = 69404251680.

The previous prime is 101222020639. The next prime is 101222020657. The reversal of 101222020655 is 556020222101.

It is not a de Polignac number, because 101222020655 - 2⁴ = 101222020639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222020657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407900 + ... + 607310.

It is an arithmetic number, because the mean of its divisors is an integer number (8676814944).

Almost surely, 2^101222020655 is an apocalyptic number.

101222020655 is a deficient number, since it is larger than the sum of its proper divisors (37607018449).

101222020655 is a wasteful number, since it uses less digits than its factorization.

101222020655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213926.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 101222020655 its reverse (556020222101), we get a palindrome (657242242756).

The spelling of 101222020655 in words is "one hundred one billion, two hundred twenty-two million, twenty thousand, six hundred fifty-five".