10101221001010 has 8 divisors (see below), whose sum is σ = 18182197801836. Its totient is φ = 4040488400400.

The previous prime is 10101221000951. The next prime is 10101221001031. The reversal of 10101221001010 is 1010012210101.

It can be written as a sum of positive squares in 2 ways, for example, as 9570119660721 + 531101340289 = 3093561^2 + 728767^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10101221001010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1010122100101 = 10101221001010 / (1 + 0 + 1 + 0 + 1 + 2 + 2 + 1 + 0 + 0 + 1 + 0 + 1 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505061050041 + ... + 505061050060.

Almost surely, 2^{10101221001010} is an apocalyptic number.

10101221001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10101221001010 is a deficient number, since it is larger than the sum of its proper divisors (8080976800826).

10101221001010 is a wasteful number, since it uses less digits than its factorization.

10101221001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010122100108.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10101221001010 its reverse (1010012210101), we get a palindrome (11111233211111).

The spelling of 10101221001010 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, one thousand, ten".