1021121002010 has 16 divisors (see below), whose sum is σ = 1843570733472. Its totient is φ = 407214416400.

The previous prime is 1021121002007. The next prime is 1021121002019. The reversal of 1021121002010 is 102001211201.

It is a junction number, because it is equal to n+sod(n) for n = 1021121001982 and 1021121002000.

It is not an unprimeable number, because it can be changed into a prime (1021121002019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154244576 + ... + 154251195.

It is an arithmetic number, because the mean of its divisors is an integer number (115223170842).

Almost surely, 2^{1021121002010} is an apocalyptic number.

1021121002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021121002010 is a deficient number, since it is larger than the sum of its proper divisors (822449731462).

1021121002010 is a wasteful number, since it uses less digits than its factorization.

1021121002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308496109.

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

Adding to 1021121002010 its reverse (102001211201), we get a palindrome (1123122213211).

The spelling of 1021121002010 in words is "one trillion, twenty-one billion, one hundred twenty-one million, two thousand, ten".