220021026402 has 16 divisors (see below), whose sum is σ = 442015338240. Its totient is φ = 73011461232.

The previous prime is 220021026391. The next prime is 220021026427. The reversal of 220021026402 is 204620120022.

220021026402 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82218777 + ... + 82221452.

It is an arithmetic number, because the mean of its divisors is an integer number (27625958640).

Almost surely, 2^220021026402 is an apocalyptic number.

220021026402 is an abundant number, since it is smaller than the sum of its proper divisors (221994311838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220021026402 is a wasteful number, since it uses less digits than its factorization.

220021026402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164440457.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 220021026402 its reverse (204620120022), we get a palindrome (424641146424).

The spelling of 220021026402 in words is "two hundred twenty billion, twenty-one million, twenty-six thousand, four hundred two".