101220121000002 has 96 divisors (see below), whose sum is σ = 220880480736960. Its totient is φ = 30894370237440.

The previous prime is 101220120999983. The next prime is 101220121000007. The reversal of 101220121000002 is 200000121022101.

It is not an unprimeable number, because it can be changed into a prime (101220121000007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 804414252 + ... + 804540072.

It is an arithmetic number, because the mean of its divisors is an integer number (2300838341010).

Almost surely, 2^{101220121000002} is an apocalyptic number.

101220121000002 is an abundant number, since it is smaller than the sum of its proper divisors (119660359736958).

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

101220121000002 is a wasteful number, since it uses less digits than its factorization.

101220121000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138436 (or 138419 counting only the distinct ones).

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

Adding to 101220121000002 its reverse (200000121022101), we get a palindrome (301220242022103).

The spelling of 101220121000002 in words is "one hundred one trillion, two hundred twenty billion, one hundred twenty-one million, two", and thus it is an aban number.