101221022012 has 60 divisors (see below), whose sum is σ = 198531746280. Its totient is φ = 45140066400.

The previous prime is 101221022011. The next prime is 101221022033. The reversal of 101221022012 is 210220122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221022011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3087587 + ... + 3120197.

It is an arithmetic number, because the mean of its divisors is an integer number (3308862438).

Almost surely, 2^101221022012 is an apocalyptic number.

It is an amenable number.

101221022012 is a deficient number, since it is larger than the sum of its proper divisors (97310724268).

101221022012 is an equidigital number, since it uses as much as digits as its factorization.

101221022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32712 (or 32677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101221022012 its reverse (210220122101), we get a palindrome (311441144113).

The spelling of 101221022012 in words is "one hundred one billion, two hundred twenty-one million, twenty-two thousand, twelve".