1020011211000 has 192 divisors, whose sum is σ = 3575329037280. Its totient is φ = 272002924800.

The previous prime is 1020011210987. The next prime is 1020011211031. The reversal of 1020011211000 is 1121100201.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1855789 + ... + 2341788.

Almost surely, 2^{1020011211000} is an apocalyptic number.

1020011211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020011211000 is an abundant number, since it is smaller than the sum of its proper divisors (2555317826280).

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

1020011211000 is an equidigital number, since it uses as much as digits as its factorization.

1020011211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197613 (or 4197587 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1020011211000 its reverse (1121100201), we get a palindrome (1021132311201).

The spelling of 1020011211000 in words is "one trillion, twenty billion, eleven million, two hundred eleven thousand".