101021012020002 has 64 divisors (see below), whose sum is σ = 207221670000000. Its totient is φ = 32821429132800.

The previous prime is 101021012019989. The next prime is 101021012020003. The reversal of 101021012020002 is 200020210120101.

It is a self number, because there is not a number n which added to its sum of digits gives 101021012020002.

It is not an unprimeable number, because it can be changed into a prime (101021012020003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62089374 + ... + 63695622.

It is an arithmetic number, because the mean of its divisors is an integer number (3237838593750).

Almost surely, 2^{101021012020002} is an apocalyptic number.

101021012020002 is an abundant number, since it is smaller than the sum of its proper divisors (106200657979998).

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

101021012020002 is a wasteful number, since it uses less digits than its factorization.

101021012020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607971.

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

Adding to 101021012020002 its reverse (200020210120101), we get a palindrome (301041222140103).

It can be divided in two parts, 1010 and 21012020002, that added together give a palindrome (21012021012).

The spelling of 101021012020002 in words is "one hundred one trillion, twenty-one billion, twelve million, twenty thousand, two".