101001220212 has 24 divisors (see below), whose sum is σ = 235722092256. Its totient is φ = 33659562208.

The previous prime is 101001220189. The next prime is 101001220217. The reversal of 101001220212 is 212022100101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001220217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882738 + ... + 990569.

It is an arithmetic number, because the mean of its divisors is an integer number (9821753844).

Almost surely, 2^101001220212 is an apocalyptic number.

101001220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101001220212 is an abundant number, since it is smaller than the sum of its proper divisors (134720872044).

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

101001220212 is a wasteful number, since it uses less digits than its factorization.

101001220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877807 (or 1877805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101001220212 its reverse (212022100101), we get a palindrome (313023320313).

The spelling of 101001220212 in words is "one hundred one billion, one million, two hundred twenty thousand, two hundred twelve".