220021012051 has 2 divisors, whose sum is σ = 220021012052. Its totient is φ = 220021012050.

The previous prime is 220021012033. The next prime is 220021012069. The reversal of 220021012051 is 150210120022.

It is a happy number.

220021012051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (220021012033) and next prime (220021012069).

It is a cyclic number.

It is not a de Polignac number, because 220021012051 - 2⁷ = 220021011923 is a prime.

It is not a weakly prime, because it can be changed into another prime (220021042051) 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 as a sum of consecutive naturals, namely, 110010506025 + 110010506026.

It is an arithmetic number, because the mean of its divisors is an integer number (110010506026).

Almost surely, 2^220021012051 is an apocalyptic number.

220021012051 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021012051 is an equidigital number, since it uses as much as digits as its factorization.

220021012051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 220021012051 its reverse (150210120022), we get a palindrome (370231132073).

The spelling of 220021012051 in words is "two hundred twenty billion, twenty-one million, twelve thousand, fifty-one".