1000211222020 has 12 divisors (see below), whose sum is σ = 2100443566284. Its totient is φ = 400084488800.

The previous prime is 1000211221909. The next prime is 1000211222041. The reversal of 1000211222020 is 202221120001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 177286470916 + 822924751104 = 421054^2 + 907152^2 .

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, 25005280531 + ... + 25005280570.

It is an arithmetic number, because the mean of its divisors is an integer number (175036963857).

Almost surely, 2^{1000211222020} is an apocalyptic number.

1000211222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000211222020 is an abundant number, since it is smaller than the sum of its proper divisors (1100232344264).

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

1000211222020 is a wasteful number, since it uses less digits than its factorization.

1000211222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50010561110 (or 50010561108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000211222020 its reverse (202221120001), we get a palindrome (1202432342021).

The spelling of 1000211222020 in words is "one trillion, two hundred eleven million, two hundred twenty-two thousand, twenty".