1011222002220 has 48 divisors (see below), whose sum is σ = 2835316393728. Its totient is φ = 269288268480.

The previous prime is 1011222002209. The next prime is 1011222002237. The reversal of 1011222002220 is 222002221101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1011222002220.

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, 11547646 + ... + 11634885.

It is an arithmetic number, because the mean of its divisors is an integer number (59069091536).

Almost surely, 2^{1011222002220} is an apocalyptic number.

1011222002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011222002220 is an abundant number, since it is smaller than the sum of its proper divisors (1824094391508).

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

1011222002220 is a wasteful number, since it uses less digits than its factorization.

1011222002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23183270 (or 23183268 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1011222002220 its reverse (222002221101), we get a palindrome (1233224223321).

The spelling of 1011222002220 in words is "one trillion, eleven billion, two hundred twenty-two million, two thousand, two hundred twenty".