1210001501016 has 240 divisors, whose sum is σ = 4300856916840. Its totient is φ = 314286013440.

The previous prime is 1210001500963. The next prime is 1210001501017. The reversal of 1210001501016 is 6101051000121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1210001501016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210001501017) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1382905 + ... + 2081448.

Almost surely, 2^{1210001501016} is an apocalyptic number.

It is an amenable number.

1210001501016 is an abundant number, since it is smaller than the sum of its proper divisors (3090855415824).

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

1210001501016 is a wasteful number, since it uses less digits than its factorization.

1210001501016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464396 (or 3464376 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

Adding to 1210001501016 its reverse (6101051000121), we get a palindrome (7311052501137).

The spelling of 1210001501016 in words is "one trillion, two hundred ten billion, one million, five hundred one thousand, sixteen".