20012201012 has 24 divisors (see below), whose sum is σ = 35661560256. Its totient is φ = 9824839808.

The previous prime is 20012200979. The next prime is 20012201023. The reversal of 20012201012 is 21010221002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20012200984 and 20012201002.

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, 158528 + ... + 255255.

It is an arithmetic number, because the mean of its divisors is an integer number (1485898344).

Almost surely, 2^20012201012 is an apocalyptic number.

It is an amenable number.

20012201012 is a deficient number, since it is larger than the sum of its proper divisors (15649359244).

20012201012 is a wasteful number, since it uses less digits than its factorization.

20012201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414007 (or 414005 counting only the distinct ones).

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

Adding to 20012201012 its reverse (21010221002), we get a palindrome (41022422014).

The spelling of 20012201012 in words is "twenty billion, twelve million, two hundred one thousand, twelve".