101212222220 has 24 divisors (see below), whose sum is σ = 214933824000. Its totient is φ = 40030001792.

The previous prime is 101212222213. The next prime is 101212222253. The reversal of 101212222220 is 22222212101.

It is a happy 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, 28428620 + ... + 28432179.

It is an arithmetic number, because the mean of its divisors is an integer number (8955576000).

Almost surely, 2^101212222220 is an apocalyptic number.

101212222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212222220 is an abundant number, since it is smaller than the sum of its proper divisors (113721601780).

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

101212222220 is a wasteful number, since it uses less digits than its factorization.

101212222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56860897 (or 56860895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101212222220 its reverse (22222212101), we get a palindrome (123434434321).

The spelling of 101212222220 in words is "one hundred one billion, two hundred twelve million, two hundred twenty-two thousand, two hundred twenty".