1021122242142 has 16 divisors (see below), whose sum is σ = 2112666708240. Its totient is φ = 328637043392.

The previous prime is 1021122242117. The next prime is 1021122242143. The reversal of 1021122242142 is 2412422211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021122242143) 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, 2934259143 + ... + 2934259490.

It is an arithmetic number, because the mean of its divisors is an integer number (132041669265).

Almost surely, 2^{1021122242142} is an apocalyptic number.

1021122242142 is an abundant number, since it is smaller than the sum of its proper divisors (1091544466098).

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

1021122242142 is a wasteful number, since it uses less digits than its factorization.

1021122242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868518667.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1021122242142 its reverse (2412422211201), we get a palindrome (3433544453343).

The spelling of 1021122242142 in words is "one trillion, twenty-one billion, one hundred twenty-two million, two hundred forty-two thousand, one hundred forty-two".