1020021211010 has 8 divisors (see below), whose sum is σ = 1836038179836. Its totient is φ = 408008484400.

The previous prime is 1020021211007. The next prime is 1020021211051. The reversal of 1020021211010 is 101121200201.

It can be written as a sum of positive squares in 2 ways, for example, as 944762616121 + 75258594889 = 971989^2 + 274333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1020021210982 and 1020021211000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51001060541 + ... + 51001060560.

Almost surely, 2^{1020021211010} is an apocalyptic number.

1020021211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020021211010 is a deficient number, since it is larger than the sum of its proper divisors (816016968826).

1020021211010 is a wasteful number, since it uses less digits than its factorization.

1020021211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102002121108.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020021211010 its reverse (101121200201), we get a palindrome (1121142411211).

The spelling of 1020021211010 in words is "one trillion, twenty billion, twenty-one million, two hundred eleven thousand, ten".