1010101212 has 96 divisors (see below), whose sum is σ = 2751759360. Its totient is φ = 319809600.

The previous prime is 1010101193. The next prime is 1010101273. The reversal of 1010101212 is 2121010101.

It is a happy number.

1010101212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1010101194 and 1010101203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373738 + ... + 376430.

It is an arithmetic number, because the mean of its divisors is an integer number (28664160).

Almost surely, 2^1010101212 is an apocalyptic number.

1010101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375879680).

1010101212 is an abundant number, since it is smaller than the sum of its proper divisors (1741658148).

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

1010101212 is a wasteful number, since it uses less digits than its factorization.

1010101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880 (or 2872 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1010101212 is about 31782.0894844880. The cubic root of 1010101212 is about 1003.3557966982.

Adding to 1010101212 its reverse (2121010101), we get a palindrome (3131111313).

It can be divided in two parts, 1010101 and 212, that multiplied together give a palindrome (214141412).

The spelling of 1010101212 in words is "one billion, ten million, one hundred one thousand, two hundred twelve".