101220222012220 has 48 divisors (see below), whose sum is σ = 219982961540160. Its totient is φ = 39075813572096.

The previous prime is 101220222012197. The next prime is 101220222012317. The reversal of 101220222012220 is 22210222022101.

It is a congruent number.

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, 34607377 + ... + 37418056.

It is an arithmetic number, because the mean of its divisors is an integer number (4582978365420).

Almost surely, 2^{101220222012220} is an apocalyptic number.

101220222012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220222012220 is an abundant number, since it is smaller than the sum of its proper divisors (118762739527940).

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

101220222012220 is a wasteful number, since it uses less digits than its factorization.

101220222012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72027894 (or 72027892 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 101220222012220 its reverse (22210222022101), we get a palindrome (123430444034321).

The spelling of 101220222012220 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-two million, twelve thousand, two hundred twenty".