101220021001012 has 48 divisors (see below), whose sum is σ = 178211819520000. Its totient is φ = 50302822364640.

The previous prime is 101220021001009. The next prime is 101220021001019. The reversal of 101220021001012 is 210100120022101.

It is a junction number, because it is equal to n+sod(n) for n = 101220021000983 and 101220021001001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220021001019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4913821489 + ... + 4913842087.

It is an arithmetic number, because the mean of its divisors is an integer number (3712746240000).

Almost surely, 2^{101220021001012} is an apocalyptic number.

It is an amenable number.

101220021001012 is a deficient number, since it is larger than the sum of its proper divisors (76991798518988).

101220021001012 is a wasteful number, since it uses less digits than its factorization.

101220021001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25876 (or 25874 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101220021001012 its reverse (210100120022101), we get a palindrome (311320141023113).

The spelling of 101220021001012 in words is "one hundred one trillion, two hundred twenty billion, twenty-one million, one thousand, twelve".