202213420021 has 8 divisors (see below), whose sum is σ = 211013737344. Its totient is φ = 193413805200.

The previous prime is 202213420009. The next prime is 202213420061. The reversal of 202213420021 is 120024312202.

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

It is a cyclic number.

It is not a de Polignac number, because 202213420021 - 2¹⁹ = 202212895733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202213420061) 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, 461871 + ... + 785971.

It is an arithmetic number, because the mean of its divisors is an integer number (26376717168).

Almost surely, 2^202213420021 is an apocalyptic number.

It is an amenable number.

202213420021 is a deficient number, since it is larger than the sum of its proper divisors (8800317323).

202213420021 is a wasteful number, since it uses less digits than its factorization.

202213420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351251.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202213420021 its reverse (120024312202), we get a palindrome (322237732223).

The spelling of 202213420021 in words is "two hundred two billion, two hundred thirteen million, four hundred twenty thousand, twenty-one".