1202010120021 has 8 divisors (see below), whose sum is σ = 1602721096864. Its totient is φ = 801319611600.

The previous prime is 1202010120007. The next prime is 1202010120049. The reversal of 1202010120021 is 1200210102021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202010120021 - 2¹³ = 1202010111829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202010119979 and 1202010120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202010121021) 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, 4979551 + ... + 5215356.

It is an arithmetic number, because the mean of its divisors is an integer number (200340137108).

Almost surely, 2^{1202010120021} is an apocalyptic number.

It is an amenable number.

1202010120021 is a deficient number, since it is larger than the sum of its proper divisors (400710976843).

1202010120021 is a wasteful number, since it uses less digits than its factorization.

1202010120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10234211.

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

Adding to 1202010120021 its reverse (1200210102021), we get a palindrome (2402220222042).

The spelling of 1202010120021 in words is "one trillion, two hundred two billion, ten million, one hundred twenty thousand, twenty-one".