20021202211012 has 12 divisors (see below), whose sum is σ = 35051745383676. Its totient is φ = 10006417815680.

The previous prime is 20021202211009. The next prime is 20021202211069. The reversal of 20021202211012 is 21011220212002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4421498685696 + 15599703525316 = 2102736^2 + 3949646^2 .

It is a super-3 number, since 3×20021202211012³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045811689 + ... + 1045830832.

It is an arithmetic number, because the mean of its divisors is an integer number (2920978781973).

Almost surely, 2^{20021202211012} is an apocalyptic number.

It is an amenable number.

20021202211012 is a deficient number, since it is larger than the sum of its proper divisors (15030543172664).

20021202211012 is a wasteful number, since it uses less digits than its factorization.

20021202211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091644918 (or 2091644916 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20021202211012 its reverse (21011220212002), we get a palindrome (41032422423014).

The spelling of 20021202211012 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred eleven thousand, twelve".