101011012220 has 24 divisors (see below), whose sum is σ = 221345871264. Its totient is φ = 38647691456.

The previous prime is 101011012211. The next prime is 101011012259. The reversal of 101011012220 is 22210110101.

It is a congruent number.

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, 109794119 + ... + 109795038.

It is an arithmetic number, because the mean of its divisors is an integer number (9222744636).

Almost surely, 2^101011012220 is an apocalyptic number.

101011012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101011012220 is an abundant number, since it is smaller than the sum of its proper divisors (120334859044).

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

101011012220 is a wasteful number, since it uses less digits than its factorization.

101011012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219589189 (or 219589187 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101011012220 its reverse (22210110101), we get a palindrome (123221122321).

The spelling of 101011012220 in words is "one hundred one billion, eleven million, twelve thousand, two hundred twenty".