201220029 has 12 divisors (see below), whose sum is σ = 295416732. Its totient is φ = 131947200.

The previous prime is 201219917. The next prime is 201220043. The reversal of 201220029 is 920022102.

It can be written as a sum of positive squares in 2 ways, for example, as 72284004 + 128936025 = 8502^2 + 11355^2 .

It is not a de Polignac number, because 201220029 - 2¹⁷ = 201088957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201219993 and 201220020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182712 + ... + 183809.

It is an arithmetic number, because the mean of its divisors is an integer number (24618061).

Almost surely, 2^201220029 is an apocalyptic number.

It is an amenable number.

201220029 is a deficient number, since it is larger than the sum of its proper divisors (94196703).

201220029 is a wasteful number, since it uses less digits than its factorization.

201220029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366588 (or 366585 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 201220029 is about 14185.2045808300. The cubic root of 201220029 is about 585.9902666634.

The spelling of 201220029 in words is "two hundred one million, two hundred twenty thousand, twenty-nine".