20020021111212 has 48 divisors (see below), whose sum is σ = 47002845120000. Its totient is φ = 6632100498240.

The previous prime is 20020021111187. The next prime is 20020021111231. The reversal of 20020021111212 is 21211112002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020021111191 and 20020021111200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5563339 + ... + 8425602.

It is an arithmetic number, because the mean of its divisors is an integer number (979225940000).

Almost surely, 2^{20020021111212} is an apocalyptic number.

It is an amenable number.

20020021111212 is an abundant number, since it is smaller than the sum of its proper divisors (26982824008788).

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

20020021111212 is a wasteful number, since it uses less digits than its factorization.

20020021111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989686 (or 13989684 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20020021111212 its reverse (21211112002002), we get a palindrome (41231133113214).

The spelling of 20020021111212 in words is "twenty trillion, twenty billion, twenty-one million, one hundred eleven thousand, two hundred twelve".