1210101012 has 48 divisors (see below), whose sum is σ = 3210271680. Its totient is φ = 393984864.

The previous prime is 1210101007. The next prime is 1210101031. The reversal of 1210101012 is 2101010121.

It is a happy number.

1210101012 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 = 1210100985 and 1210101003.

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, 125643 + ... + 134930.

It is an arithmetic number, because the mean of its divisors is an integer number (66880660).

Almost surely, 2^1210101012 is an apocalyptic number.

1210101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210101012 is an abundant number, since it is smaller than the sum of its proper divisors (2000170668).

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

1210101012 is a wasteful number, since it uses less digits than its factorization.

1210101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260629 (or 260621 counting only the distinct ones).

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

The square root of 1210101012 is about 34786.5061769647. The cubic root of 1210101012 is about 1065.6318884520.

Adding to 1210101012 its reverse (2101010121), we get a palindrome (3311111133).

The spelling of 1210101012 in words is "one billion, two hundred ten million, one hundred one thousand, twelve".