302012221021 has 8 divisors (see below), whose sum is σ = 345453614784. Its totient is φ = 258645024960.

The previous prime is 302012221001. The next prime is 302012221031. The reversal of 302012221021 is 120122210203.

It is a happy number.

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

It is not a de Polignac number, because 302012221021 - 2⁹ = 302012220509 is a prime.

It is a super-2 number, since 2×302012221021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302012220986 and 302012221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302012221001) 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, 18540700 + ... + 18556981.

It is an arithmetic number, because the mean of its divisors is an integer number (43181701848).

Almost surely, 2^302012221021 is an apocalyptic number.

It is an amenable number.

302012221021 is a deficient number, since it is larger than the sum of its proper divisors (43441393763).

302012221021 is a wasteful number, since it uses less digits than its factorization.

302012221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37098851.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 302012221021 its reverse (120122210203), we get a palindrome (422134431224).

The spelling of 302012221021 in words is "three hundred two billion, twelve million, two hundred twenty-one thousand, twenty-one".