1022012121000 has 384 divisors, whose sum is σ = 3464265542400. Its totient is φ = 250739174400.

The previous prime is 1022012120999. The next prime is 1022012121041. The reversal of 1022012121000 is 1212102201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 160715821 + ... + 160722179.

It is an arithmetic number, because the mean of its divisors is an integer number (9021524850).

Almost surely, 2^{1022012121000} is an apocalyptic number.

1022012121000 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 1022012121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732132771200).

1022012121000 is an abundant number, since it is smaller than the sum of its proper divisors (2442253421400).

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

1022012121000 is a wasteful number, since it uses less digits than its factorization.

1022012121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726 (or 6699 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1022012121000 its reverse (1212102201), we get a palindrome (1023224223201).

The spelling of 1022012121000 in words is "one trillion, twenty-two billion, twelve million, one hundred twenty-one thousand".