1021230022000 has 80 divisors (see below), whose sum is σ = 2476452112992. Its totient is φ = 407314521600.

The previous prime is 1021230021989. The next prime is 1021230022009. The reversal of 1021230022000 is 2200321201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021230022009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41757 + ... + 1429756.

Almost surely, 2^{1021230022000} is an apocalyptic number.

1021230022000 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 1021230022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238226056496).

1021230022000 is an abundant number, since it is smaller than the sum of its proper divisors (1455222090992).

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

1021230022000 is a wasteful number, since it uses less digits than its factorization.

1021230022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471883 (or 1471867 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 1021230022000 its reverse (2200321201), we get a palindrome (1023430343201).

The spelling of 1021230022000 in words is "one trillion, twenty-one billion, two hundred thirty million, twenty-two thousand".