1000211210220 has 96 divisors (see below), whose sum is σ = 2812501391616. Its totient is φ = 265589280000.

The previous prime is 1000211210209. The next prime is 1000211210221. The reversal of 1000211210220 is 220121120001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1000211210196 and 1000211210205.

It is not an unprimeable number, because it can be changed into a prime (1000211210221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80519610 + ... + 80532030.

It is an arithmetic number, because the mean of its divisors is an integer number (29296889496).

Almost surely, 2^{1000211210220} is an apocalyptic number.

1000211210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000211210220 is an abundant number, since it is smaller than the sum of its proper divisors (1812290181396).

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

1000211210220 is a wasteful number, since it uses less digits than its factorization.

1000211210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18031 (or 18029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1000211210220 its reverse (220121120001), we get a palindrome (1220332330221).

The spelling of 1000211210220 in words is "one trillion, two hundred eleven million, two hundred ten thousand, two hundred twenty".