1201010022021 has 16 divisors (see below), whose sum is σ = 1623094985600. Its totient is φ = 789863358528.

The previous prime is 1201010021993. The next prime is 1201010022049. The reversal of 1201010022021 is 1202200101021.

It is an interprime number because it is at equal distance from previous prime (1201010021993) and next prime (1201010022049).

It is not a de Polignac number, because 1201010022021 - 2⁶ = 1201010021957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201010021988 and 1201010022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201010022061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7944361 + ... + 8094126.

It is an arithmetic number, because the mean of its divisors is an integer number (101443436600).

Almost surely, 2^{1201010022021} is an apocalyptic number.

It is an amenable number.

1201010022021 is a deficient number, since it is larger than the sum of its proper divisors (422084963579).

1201010022021 is a wasteful number, since it uses less digits than its factorization.

1201010022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16038828.

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

Adding to 1201010022021 its reverse (1202200101021), we get a palindrome (2403210123042).

The spelling of 1201010022021 in words is "one trillion, two hundred one billion, ten million, twenty-two thousand, twenty-one".