1202220012021 has 16 divisors (see below), whose sum is σ = 1832294924928. Its totient is φ = 686855131200.

The previous prime is 1202220012001. The next prime is 1202220012031. The reversal of 1202220012021 is 1202100222021.

It is not a de Polignac number, because 1202220012021 - 2¹⁴ = 1202219995637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202220012001) 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, 5206510 + ... + 5432511.

It is an arithmetic number, because the mean of its divisors is an integer number (114518432808).

Almost surely, 2^{1202220012021} is an apocalyptic number.

It is an amenable number.

1202220012021 is a deficient number, since it is larger than the sum of its proper divisors (630074912907).

1202220012021 is a wasteful number, since it uses less digits than its factorization.

1202220012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10644412.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1202220012021 its reverse (1202100222021), we get a palindrome (2404320234042).

The spelling of 1202220012021 in words is "one trillion, two hundred two billion, two hundred twenty million, twelve thousand, twenty-one".