201022001012 has 24 divisors (see below), whose sum is σ = 404978637504. Its totient is φ = 85523435712.

The previous prime is 201022001009. The next prime is 201022001029. The reversal of 201022001012 is 210100220102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201022000984 and 201022001002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26198198 + ... + 26205869.

It is an arithmetic number, because the mean of its divisors is an integer number (16874109896).

Almost surely, 2^201022001012 is an apocalyptic number.

It is an amenable number.

201022001012 is an abundant number, since it is smaller than the sum of its proper divisors (203956636492).

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

201022001012 is a wasteful number, since it uses less digits than its factorization.

201022001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52404215 (or 52404213 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201022001012 its reverse (210100220102), we get a palindrome (411122221114).

The spelling of 201022001012 in words is "two hundred one billion, twenty-two million, one thousand, twelve".