1131021220210 has 32 divisors (see below), whose sum is σ = 2366107355520. Its totient is φ = 381206182272.

The previous prime is 1131021220201. The next prime is 1131021220223. The reversal of 1131021220210 is 120221201311.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136923379 + ... + 136931638.

It is an arithmetic number, because the mean of its divisors is an integer number (73940854860).

Almost surely, 2^{1131021220210} is an apocalyptic number.

1131021220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131021220210 is an abundant number, since it is smaller than the sum of its proper divisors (1235086135310).

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

1131021220210 is a wasteful number, since it uses less digits than its factorization.

1131021220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273855090.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1131021220210 its reverse (120221201311), we get a palindrome (1251242421521).

The spelling of 1131021220210 in words is "one trillion, one hundred thirty-one billion, twenty-one million, two hundred twenty thousand, two hundred ten".