20020212 has 36 divisors (see below), whose sum is σ = 52809120. Its totient is φ = 6382992.

The previous prime is 20020207. The next prime is 20020223. The reversal of 20020212 is 21202002.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20020194 and 20020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11262 + ... + 12917.

It is an arithmetic number, because the mean of its divisors is an integer number (1466920).

Almost surely, 2^20020212 is an apocalyptic number.

It is an amenable number.

20020212 is an abundant number, since it is smaller than the sum of its proper divisors (32788908).

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

20020212 is a wasteful number, since it uses less digits than its factorization.

20020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24212 (or 24207 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 20020212 is about 4474.3951546550. The cubic root of 20020212 is about 271.5331705552.

Adding to 20020212 its reverse (21202002), we get a palindrome (41222214).

The spelling of 20020212 in words is "twenty million, twenty thousand, two hundred twelve".