201020220121012 has 12 divisors (see below), whose sum is σ = 352219152646816. Its totient is φ = 100386176507640.

The previous prime is 201020220121009. The next prime is 201020220121013. The reversal of 201020220121012 is 210121022020102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020220121013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30983384568 + ... + 30983391055.

Almost surely, 2^{201020220121012} is an apocalyptic number.

It is an amenable number.

201020220121012 is a deficient number, since it is larger than the sum of its proper divisors (151198932525804).

201020220121012 is a wasteful number, since it uses less digits than its factorization.

201020220121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61966776438 (or 61966776436 counting only the distinct ones).

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

Adding to 201020220121012 its reverse (210121022020102), we get a palindrome (411141242141114).

The spelling of 201020220121012 in words is "two hundred one trillion, twenty billion, two hundred twenty million, one hundred twenty-one thousand, twelve".