200420011021 has 8 divisors (see below), whose sum is σ = 213880366080. Its totient is φ = 187145316288.

The previous prime is 200420010979. The next prime is 200420011039. The reversal of 200420011021 is 120110024002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 200420011021 - 2⁹ = 200420010509 is a prime.

It is a super-2 number, since 2×200420011021² (a number of 23 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 = 200420010992 and 200420011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200420011081) 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, 46412851 + ... + 46417168.

It is an arithmetic number, because the mean of its divisors is an integer number (26735045760).

Almost surely, 2^200420011021 is an apocalyptic number.

It is an amenable number.

200420011021 is a deficient number, since it is larger than the sum of its proper divisors (13460355059).

200420011021 is a wasteful number, since it uses less digits than its factorization.

200420011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92830163.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200420011021 its reverse (120110024002), we get a palindrome (320530035023).

The spelling of 200420011021 in words is "two hundred billion, four hundred twenty million, eleven thousand, twenty-one".