1212010023210 has 128 divisors (see below), whose sum is σ = 3357968486400. Its totient is φ = 274241410560.

The previous prime is 1212010023209. The next prime is 1212010023223. The reversal of 1212010023210 is 123200102121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212010023210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11197731 + ... + 11305449.

It is an arithmetic number, because the mean of its divisors is an integer number (26234128800).

Almost surely, 2^{1212010023210} is an apocalyptic number.

1212010023210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212010023210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678984243200).

1212010023210 is an abundant number, since it is smaller than the sum of its proper divisors (2145958463190).

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

1212010023210 is a wasteful number, since it uses less digits than its factorization.

1212010023210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108276.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1212010023210 its reverse (123200102121), we get a palindrome (1335210125331).

The spelling of 1212010023210 in words is "one trillion, two hundred twelve billion, ten million, twenty-three thousand, two hundred ten".