10101220550 has 24 divisors (see below), whose sum is σ = 19436144400. Its totient is φ = 3901160480.

The previous prime is 10101220541. The next prime is 10101220559. The reversal of 10101220550 is 5502210101.

It is an interprime number because it is at equal distance from previous prime (10101220541) and next prime (10101220559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101220559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3481730 + ... + 3484629.

It is an arithmetic number, because the mean of its divisors is an integer number (809839350).

Almost surely, 2^10101220550 is an apocalyptic number.

10101220550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10101220550 is a deficient number, since it is larger than the sum of its proper divisors (9334923850).

10101220550 is a wasteful number, since it uses less digits than its factorization.

10101220550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966400 (or 6966395 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 10101220550 its reverse (5502210101), we get a palindrome (15603430651).

The spelling of 10101220550 in words is "ten billion, one hundred one million, two hundred twenty thousand, five hundred fifty".