1020010012220 has 48 divisors (see below), whose sum is σ = 2158850232000. Its totient is φ = 404804674560.

The previous prime is 1020010012207. The next prime is 1020010012243. The reversal of 1020010012220 is 222100100201.

It is a happy number.

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, 2431121 + ... + 2819639.

It is an arithmetic number, because the mean of its divisors is an integer number (44976046500).

Almost surely, 2^{1020010012220} is an apocalyptic number.

1020010012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020010012220 is an abundant number, since it is smaller than the sum of its proper divisors (1138840219780).

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

1020010012220 is a wasteful number, since it uses less digits than its factorization.

1020010012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389558 (or 389556 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1020010012220 its reverse (222100100201), we get a palindrome (1242110112421).

The spelling of 1020010012220 in words is "one trillion, twenty billion, ten million, twelve thousand, two hundred twenty".