20010214021 has 32 divisors (see below), whose sum is σ = 25636296960. Its totient is φ = 15204381696.

The previous prime is 20010213943. The next prime is 20010214039. The reversal of 20010214021 is 12041201002.

It is a happy number.

It is not a de Polignac number, because 20010214021 - 2²³ = 20001825413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010213992 and 20010214010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010214921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365575 + ... + 416731.

It is an arithmetic number, because the mean of its divisors is an integer number (801134280).

Almost surely, 2^20010214021 is an apocalyptic number.

It is an amenable number.

20010214021 is a deficient number, since it is larger than the sum of its proper divisors (5626082939).

20010214021 is a wasteful number, since it uses less digits than its factorization.

20010214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51373.

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

Adding to 20010214021 its reverse (12041201002), we get a palindrome (32051415023).

The spelling of 20010214021 in words is "twenty billion, ten million, two hundred fourteen thousand, twenty-one".