1020012210000 has 800 divisors, whose sum is σ = 4239102053120. Its totient is φ = 229920768000.

The previous prime is 1020012209999. The next prime is 1020012210001. The reversal of 1020012210000 is 122100201.

It is an interprime number because it is at equal distance from previous prime (1020012209999) and next prime (1020012210001).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012210001) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 137966304 + ... + 137973696.

Almost surely, 2^{1020012210000} is an apocalyptic number.

1020012210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020012210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2119551026560).

1020012210000 is an abundant number, since it is smaller than the sum of its proper divisors (3219089843120).

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

1020012210000 is an equidigital number, since it uses as much as digits as its factorization.

1020012210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510 (or 7483 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020012210000 its reverse (122100201), we get a palindrome (1020134310201).

The spelling of 1020012210000 in words is "one trillion, twenty billion, twelve million, two hundred ten thousand".