10302012221220 has 72 divisors (see below), whose sum is σ = 31362251075064. Its totient is φ = 2737285544448.

The previous prime is 10302012221219. The next prime is 10302012221233. The reversal of 10302012221220 is 2212221020301.

10302012221220 is a `hidden beast` number, since 1 + 0 + 302 + 0 + 122 + 21 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 575061355584 + 9726950865636 = 758328^2 + 3118806^2 .

It is a super-2 number, since 2×10302012221220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10302012221193 and 10302012221202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103259529 + ... + 103359248.

It is an arithmetic number, because the mean of its divisors is an integer number (435586820487).

Almost surely, 2^{10302012221220} is an apocalyptic number.

10302012221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10302012221220 is an abundant number, since it is smaller than the sum of its proper divisors (21060238853844).

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

10302012221220 is a wasteful number, since it uses less digits than its factorization.

10302012221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206619069 (or 206619064 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10302012221220 its reverse (2212221020301), we get a palindrome (12514233241521).

The spelling of 10302012221220 in words is "ten trillion, three hundred two billion, twelve million, two hundred twenty-one thousand, two hundred twenty".