1011214220 has 24 divisors (see below), whose sum is σ = 2150433600. Its totient is φ = 399364992.

The previous prime is 1011214153. The next prime is 1011214241. The reversal of 1011214220 is 224121101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011214195 and 1011214204.

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, 318425 + ... + 321584.

It is an arithmetic number, because the mean of its divisors is an integer number (89601400).

Almost surely, 2^1011214220 is an apocalyptic number.

1011214220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011214220 is an abundant number, since it is smaller than the sum of its proper divisors (1139219380).

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

1011214220 is a wasteful number, since it uses less digits than its factorization.

1011214220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640097 (or 640095 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1011214220 is about 31799.5946515046. The cubic root of 1011214220 is about 1003.7241865503.

Adding to 1011214220 its reverse (224121101), we get a palindrome (1235335321).

The spelling of 1011214220 in words is "one billion, eleven million, two hundred fourteen thousand, two hundred twenty".