101212220121010 has 8 divisors (see below), whose sum is σ = 182181996217836. Its totient is φ = 40484888048400.

The previous prime is 101212220120993. The next prime is 101212220121109. The reversal of 101212220121010 is 10121022212101.

It can be written as a sum of positive squares in 2 ways, for example, as 100990259470881 + 221960650129 = 10049391^2 + 471127^2 .

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

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, 5060611006041 + ... + 5060611006060.

Almost surely, 2^{101212220121010} is an apocalyptic number.

101212220121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101212220121010 is a deficient number, since it is larger than the sum of its proper divisors (80969776096826).

101212220121010 is a wasteful number, since it uses less digits than its factorization.

101212220121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121222012108.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101212220121010 its reverse (10121022212101), we get a palindrome (111333242333111).

The spelling of 101212220121010 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, ten".