1010021211240 has 32 divisors (see below), whose sum is σ = 3030063634080. Its totient is φ = 269338989632.

The previous prime is 1010021211209. The next prime is 1010021211247. The reversal of 1010021211240 is 421121200101.

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

It is not an unprimeable number, because it can be changed into a prime (1010021211247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4208421594 + ... + 4208421833.

It is an arithmetic number, because the mean of its divisors is an integer number (94689488565).

Almost surely, 2^{1010021211240} is an apocalyptic number.

1010021211240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010021211240 is an abundant number, since it is smaller than the sum of its proper divisors (2020042422840).

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

1010021211240 is a wasteful number, since it uses less digits than its factorization.

1010021211240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416843441 (or 8416843437 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1010021211240 its reverse (421121200101), we get a palindrome (1431142411341).

The spelling of 1010021211240 in words is "one trillion, ten billion, twenty-one million, two hundred eleven thousand, two hundred forty".